Electronic calendar for pregnant women. Pregnancy terms: obstetric and embryonic - how to determine and not get confused in terms

13.09.2019

First trimester: 1-13 weeks

At the "start" after conception, an embryo is formed, but the signs are poorly felt by the mother. Details:

Week 1 For pregnancy to occur, it is necessary to attach an egg that travels through the tubes to the wall of the uterus. The expectant mother feels the world deeper, becomes more thoughtful. Many women at this stage feel symptoms, as before menstruation - pulling the lower back, aching in the stomach. To determine the gestational age in weeks and calculate the due date from the last menstrual days, use our pregnancy calculator. Try not to drink pills and eat right;
2 weeks- a follicle matures in the ovaries during ovulation, then it bursts, the egg comes out, the breast becomes sensitive, irritability increases slightly, but libido also increases. No saunas and baths during this period! No weight lifting! Only exercising, swimming, not smoking, orange juices and green vegetables rich in folic acid, which helps to absorb iron! Taste habits change, you often want to go to the toilet, pressure decreases;
3 week- the embryo lives in the mother's body, the egg is fertilized by the sperm, divides, after 2.5 weeks it reaches the uterus, which becomes loose by the end of this period. Nothing prevents the egg from attaching securely to the mucous membrane. The metabolism changes, the mammary glands coarsen. It is necessary to replace sweets with nuts, eat foods rich in calcium, protein, folic acid, iron;
4 week- Mom detects a delay in menstruation, nausea, malaise may appear. Hormones released during pregnancy can be seen already in the urine in a laboratory analysis. The internal organs are laid in the embryo, the mother needs vitamins;
5 week- the uterus thickens, the baby looks like a tadpole, but its eyes and nostrils are already forming, there is already a heart, the base of the skeleton is formed. The baby receives nourishment and oxygen from the mother's blood. The woman's ovaries actively release progesterone, the mother's immunity decreases. In 7 days, the embryo grows up to half a centimeter;
6 week- the formation of a fetal bladder is underway, protecting the embryo from any troubles, the nervous and circulatory systems are developing hourly. There are processes of creation of the brain, liver, respiratory organs, pancreas. The baby grows up to 1.3 cm;
7 week- the size of the head of the embryo reaches 0.8 cm. The visual system is formed, the neural tubes thicken, the upper part of the intestine secretes the esophagus, stomach and pharynx, the bladder, rectum are visible under the lower part, in male embryos - the prostate. In a woman, the skin of the face can become oily during this period, as in a teenager. Hormonal changes can cause itching. In case of any trouble, it is better to consult a doctor for advice;
8 week- the nervous system receives maximum development, the medulla oblongata is ready for work, the spinal cord and brain have already fully formed, the eyes are still without eyelids, there is a nose, fingers and elbow joints appear on the handles. Mothers should beware of infections;
9 week- the third month begins, the face acquires human features, the eyelids form, a sucking reflex appears, the circulatory system circulates inside the tiny organism, the heart acquires three chambers, the bronchi branch. Mommy's breasts are growing so much that the next bra number is required. The uterus increases, the ligaments stretch, pulling sensations in the lower abdomen for this period are the norm;
10 week- A 5-centimeter embryo is already considered a fetus, on ultrasound you can see its gender. His nervous system was divided into central and peripheral, the hemispheres of the brain become more independent. An enlarged uterus is groped even with hands, you constantly want to go to the toilet;
11 week- the baby's body gradually straightens, reaches 5.9 cm, the legs begin to actively catch up with the arms, an iris forms near the eyes, lymphocytes appear. The mother's kidneys experience a double load, removing metabolic products for two;
12 week- A 50-gram fetus has grown to more than 7 centimeters, the movement of the chest during breathing is noticeable, the heart beats more than 150 beats per minute, milk teeth, vocal cords, and diaphragm are formed. Mothers need to get enough sleep, exercise, keep calm;
13 week- the placenta has reached 16 mm, becoming a reliable protection for the baby. From this point on, the body will even withstand antibiotics, if necessary. Bones and ribs need calcium. Without subcutaneous fat, the skin looks wrinkled. Mom may experience constipation, lower blood pressure, and disturb the kidneys. It is important to eat right in order to gain no more than 11 kg for the entire pregnancy, for multiple pregnancy - no more than 17 kg;

Second trimester: 14-27 weeks

This is a mildly flowing period of bearing a baby, during which the mother's body is completely ready to work for two, despite weight gain, rounding of shapes, and the appearance of a belly. The embryo has fully formed internal organs and systems, the child moves its limbs, sucks its finger, and the feeling of its movements gives the mother endless delight. More:

14 week- the baby maintains the chemical composition of the amniotic fluid, excreting urine in them up to several times a day. The ovaries in girls and the prostate in boys are improved. The lack of vitamins affects the well-being of the mother. She has a feeling that there is not enough air. It is worth eating less potatoes and legumes. You may be allergic to strawberries, peaches, oranges;
15 week- the heart of the crumbs overtakes about 23 liters of blood, convolutions form in the brain, the bone marrow develops, the intestines form the original feces, the amount of amniotic fluid increases. You can talk to your baby! The height of the uterus reaches 14 cm. The woman begins to bloom;
16 week- the date of the baby's movement helps to more accurately set the date of delivery, he actively moves every 10 minutes. He opens his eyes for the first time. Fetal movement may appear by the 20th week. Charging and the right menu improve the mother's condition;
17 week- the weight of the fetus exceeds 100 g, and the height reaches 12 cm. He and his mother need calcium, healthy food, since the body type is laid. A woman feels pressure in the stomach, liver. You have to eat many times a day in small portions so that the stomach has time to cope. Sometimes there are cramps in the legs due to a lack of B vitamins, magnesium, calcium;
18 week- the height of a small child is 13 cm, weight - 170 g, head diameter - almost 4 cm, fingers become proportional, foot length reaches 2.5 cm. Mothers rejoice, feeling his movements. At this time, there is a high probability of determining the sex of the baby on an ultrasound scan. The ideal weekly weight gain for a mom is 500 g. To reduce swelling, you need to consume less salt;
19 week- the child reacts to screams, the volume of the voice, turns the head to the sound. Listen to pleasant music, do not quarrel with your family. A pattern is formed on children's palms. Shocks in the tummy become more distinct. Women do not always distinguish the movement of the fetus from the processes that occur in the intestines;
20 week- the endocrine system is formed, the parts of the brain are improving, the baby can swallow, has good hearing, its weight is about 290 g, its height is about 24 cm. Mom's waist disappears from the rounding of the tummy, the first stretch marks appear, a comfortable bra is required
21 weeks- if a baby is suddenly born after this period, its ability to survive increases significantly. Systems and organs are formed, the stomach and chest, head grow, subcutaneous fat is formed, receptors on the tongue distinguish taste, the first leukocytes appear in his body. Requires a lot of protein and 4 times more carbohydrates;
22 week- the brain weighs 100 g, the height of the fetus is 28 cm, the weight is about 430 g, the mass of the heart increases, the ligaments and vertebrae are clearly visible. It is necessary to consider the baby's movements, since swelling can compress the blood vessels that carry food to the placenta;
23 week- alveoli are formed, the respiratory system develops. Mom needs to drink plenty of water, because plasma is made up of it. On the head of the child, a fluff is noticeable during ultrasound examination, muscles, spine, bones, aorta are clearly visible;
24 week- Gradually, the skin of the baby is smoothed out, due to the appearance of subcutaneous fatty tissue. The baby feels the emotions of the mother. The doctor listens to how the heart beats, whether the breast, tummy has grown, what is the diameter of the head;
25 week- the weight of the child is 680 g, height - 34 cm. The bone marrow is connected to blood formation. In order for the alveoli to function, surfactant accumulates in the lungs. The bottom of the mother's uterus has risen to 25 cm, legs get tired more often, pain in the lower back appears;
26 week- the baby has grown to 35 cm, gained more than 770 g, smells, reacts faster to voices. The diameter of the head is now 65.1 mm, the abdomen is 67.4 mm, and the chest is 65.8 mm. By this time, the woman puts things off, spares herself more;
27 week- bookmark the speed of reactions, metabolic processes. Mom needs to gain strength for the upcoming third of gestation. The period is characterized by frequent shortness of breath due to a feeling of lack of air.

Third trimester: 28 weeks to delivery

The most difficult stage for a mother is from 7 months to childbirth. It is accompanied by the active growth of the baby, preparing the child for independent existence. Details:

28 week- the baby is exactly 7 months old, you can determine whether he will be right-handed or left-handed. To do this, the ultrasound shows which handle he often reaches for his mouth. There is already enough surfactant in the lungs so that the alveoli do not stick together during the first breath;
29 week- the growth of the baby has reached 38 cm, the weight is more than 1 kg. In the lubricant, he only has a tummy and folds. He becomes cramped inside his mother, and the blood fully protects him from infections, but venous and arterial blood is still mixed. The daily portion of urine excreted is 500 g. Mom is on maternity leave at this time;
30 week- the chest of the crumbs grew to 77.4 mm, and the tummy - to 79.3 mm. The cerebral cortex is formed, the child begins to remember some sounds, sensations. Mom will have to visit the gynecologist weekly. Due to the increased pressure on the vessels during sleep, the hands become numb, the legs cramp. The ligaments become elastic, you can do light stretching workouts in the pelvic area;
31 weeks- The child's weekly weight gain is about 200 g. The child needs subcutaneous fat to keep warm. The pigment accumulates in the hair and the iris of the eyes. Sometimes the uterus rehearses childbirth, one-time contractions appear;
32 week- the baby weighs 1700 g, the body length is over 40 cm. If the placenta "gets old", the nutrition will be disturbed, and deviations will appear in development. By this period, the first hair appears. The mother produces vasopressin and oxytocin;
33 week- the child has to take the fetal position, because there is not enough space. The body reached 43 cm, the head - 8.2 cm, the tummy - 87.4 mm, the breast - 85 mm. The placenta copes with the function of protecting the baby from harmful factors and nourishes it through the blood;
34 week- the baby weighs 2.1 kg. The placenta produces hormones that cause lactation. Its thickness is 3.39 cm. It is important not to overdo it with the use of calcium in order to exclude birth injuries. It is necessary to continue to count the movements of the fetus - 4-6 movements are considered the norm;
- childbirth is possible this week, but heredity determines a lot. The head is 1/4 of the body length, its diameter is 91 mm. Feet have been defined. The genitals and reflexes of the baby are developed. The placenta dries out, delivers nutrition worse. Mom is focused on the upcoming meeting with the baby;
39 week- the baby weighs 3.3 kg, height - 51.5 cm. Thanks to the fontanelles made of cartilage, the bones of the skull remain supple so that the child can pass through the birth canal. The baby will be able to distinguish objects at a distance of 30 cm from the eyes. The placenta ages and the fetus feels a lack of oxygen. Mom prepares things for the hospital and documents;
40 week- the child patiently waited for this hour, gained more than 3.5 kg, grew to 53 cm. The mother becomes anxious if childbirth does not occur. Before delivery, you often want to go to the toilet, the lower back aches, the cervix gradually opens, colostrum is released from the nipples.

If the birth did not occur at the 40th week, it does not matter. Resolution within 42 weeks is considered normal. It remains to trust nature. Only 10% of women in labor reach the 42nd week. Dopplerography and ultrasound are performed to assess the condition of the baby and mother. The main thing is to remain calm so as not to harm the health of mother and child.

"Cervix" in Latin means "cervix") or cervical canal. The cervix is 4 cm long and the width of the cervical canal is a maximum of 4 mm. The shape of the canal resembles a spindle, that is, its widest part is located in the center of the cervix, and the canal narrows up and down. This form ensures the preservation of the mucous plug, which is normally present in the cervical canal.

Description

This calculator will allow you to calculate what stage of pregnancy you are currently in, the date of future birth, the date of conception, and even the zodiac sign of the future baby and his zodiac animal according to the Eastern calendar. You can also determine the age of the fetus, its weight and height, and how much time is left before delivery. To do this, you need to enter the date of the first day of your last period and the length of your menstrual cycle. In addition, our calculator generates a very convenient and practical weekly pregnancy table. Using it, you can navigate which week of pregnancy you are currently in, as well as track the height and weight of your unborn child.

It is very difficult to calculate the gestational age to the nearest day and perhaps only if ovulation was specifically monitored using ultrasound. But these procedures are carried out only in the treatment of infertility. And therefore, the day of conception often remains a mystery even for the couple themselves, not to mention the doctors.

And yet, are there any calendar methods for calculating conception, is it possible to calculate the gestational age based on the menstrual cycle and the day of delay? What procedures and tests help in diagnosis and calculations? You will read about all this in the article.

calendar methods

If sexual intercourse does not occur too often, then it is quite possible that a woman will remember exactly on which day that same nimble sperm cell entered her body, which subsequently fertilized the egg. This is also possible if a woman scrupulously measures her basal temperature for several cycles and knows how to use the resulting charts with temperature values. She reports this most calculated day to the doctor, after ascertaining her pregnancy. However, the doctor, having learned when the last monthly patients were, calls the period 2 weeks more. How can this be and what to believe?

The fact is that doctors consider the obstetric period, and it depends only on the first day of the last menstruation. It turns out that pregnancy begins on the first day of menstruation, although this is not the case, of course. But this calculation method is quite accurate. And according to the same method, the estimated date of birth is calculated: 280 days are added to the first day of the last menstruation, or 3 months are taken away and 7 days are added (according to the Negele formula).

If the exact day of ovulation is known, then we can add not 280 days to the first day of the menstrual cycle, but 264. And in this way we will also find out the estimated due date. Well, pregnancy can begin to count from the day of ovulation. But again, doctors do not conduct such a calculation, and these values \u200b\u200bare not taken into account.

Ultrasound procedure

Ultrasound has been actively used for many years to diagnose fetal development. And with the help of ultrasound, the gestational age is specified. Particularly accurate in this regard are studies conducted in the first weeks of pregnancy (up to 8 weeks). During this period, all healthy embryos develop in the same way, and the gestational age according to the size of the fetus is set exactly up to the day. The longer the period - the more mistakes, since the children begin to show individuality in a sense - one head may be slightly larger than it should be at a certain period, and the other baby has a growth slightly below its age limits. If the deviations are insignificant - for a week or less, then their doctors do not take into account, as a rule, and nothing needs to be treated. Estimated term is set on the basis of measurement data of the coccygeal-parietal size. The result is obtained using a table.

If there is a developmental delay of 2 weeks or more, for all that, there is confidence in the absence of an error in setting the gestational age, the doctor makes a diagnosis of "intrauterine growth retardation of the fetus." It is impossible to "cure" her. Everything that is done in a hospital is only a preventive, and not too pronounced, effect. Good nutrition, a healthy lifestyle, walks, quiet leisure - that's what is much more important.

Gynecological examination

Many women go to the gynecologist on the very first day of the delay, or even earlier, in the hope that the doctor will be able to say for sure whether they are in a position or not. But this is not possible, unfortunately. The uterus may be slightly enlarged before menstruation. The growth of the uterus due to the development of the fetus in it begins noticeably from the end of the first trimester. At 5-6 weeks (that is, in the second or third week of delayed menstruation), the uterus is slightly larger than usual, the volume can be compared with a chicken egg. At 8 weeks, the uterus is already the size of a goose egg, and at 10 weeks it is about the size of a woman's fist. Again, gynecological examinations are the more accurate for determining the gestational age, the smaller it is.

Date of first movement

All gynecologists inspire their patients, expectant mothers, that they must remember the day when they first felt the baby inside them, that is, they felt his movements. It is believed that in pregnant women for the first time this occurs exactly at 20 weeks of pregnancy, and in pregnant women again - at exactly 18 weeks. This date must be entered into the dispensary card of a pregnant woman and taken into account when determining the expected date of birth. Although, if you believe the statements of many expectant mothers, the timing of the first movements does not always coincide with the "book". I would also like to reassure a little hyper-responsible expectant mothers who are afraid that they will not notice the first movements, thereby confusing the doctor when setting the date of birth, which can lead to overwearing. Firstly, re-carrying is determined according to the result of Doppler and according to some ultrasound indicators (maturity of the placenta, the volume of amniotic fluid, etc.). And secondly, the first movements are really very light, but quite noticeable. It is impossible not to notice the movement if you are in a horizontal position, especially on your back.

Uterine length

From about the second trimester of pregnancy, and sometimes even earlier, gynecologists evaluate the development of the fetus along the length of the uterus. It is measured with a centimeter tape, the expectant mother lies on the couch. Each week adds about 1 centimeter. There is another measurement technique, many doctors use the corresponding plates, and they can also be found in obstetrics and gynecology manuals.

12 weeks - the uterus is on the upper edge of the womb

14 weeks - the uterus is two fingers above the womb

16 weeks - the bottom of the uterus is felt between the navel and the womb

20 weeks - the fundus of the uterus is two fingers below the navel

24 weeks - uterus at the level of the navel

28 weeks - the fundus of the uterus is 2 fingers above the navel

32 weeks - between the navel and the xiphoid process (the shortest part of the sternum), length 28-30 cm

36 weeks - the bottom of the uterus at the level of the xiphoid process, "supports" the ribs, length 32-34 cm

40 weeks - before childbirth, the uterus drops to the level of 32 weeks, as the baby's head (or other presenting part of the fetus) moves lower into the pelvis, preparing to exit.

In addition to the length of the uterus, the volume of the abdomen is also taken into account, but these dimensions are already more variable, do not always show the true state of affairs and help calculate the gestational age by weeks. The volume of the abdomen is measured at the level of the navel. So in a woman with normal weight before and during the bearing of a child, the volume of the abdomen at 32 weeks will be approximately equal to 85 centimeters, and by the end of pregnancy it reaches 90-100 cm. Such an increase is associated with the rapid weight gain of the child.

The length of the uterus not only helps to verify the normal development of the fetus, the gestational age, but also to detect such pathologies as polyhydramnios or oligohydramnios and others in time.

Heart tones

The heart of the child begins to beat already at a period of 4.5 weeks, that is, 2-3 weeks after the start of a delay in menstruation in a woman. Heartbeats are visible on ultrasound, and this is the main sign that the embryo is alive and developing. Later, the heartbeat begins to be heard by the doctor through the outer wall of the uterus. But you can only hear heart tones not at 10-12 weeks, but later - at about the same time as you feel the first movements. The heartbeat is heard with the help of an obstetric stethoscope - a special tube that the doctor applies to the patient's stomach. A heartbeat can be poorly heard for several reasons. The most "harmless" of them - the placenta, which is located on the front wall of the uterus, and thereby muffles the sound, and significant deposits of fat on the abdominal wall. More seriously - polyhydramnios, chronic hypoxia. The longer the period, the more clearly the heart rhythms are heard.

Chorionic gonadotropin level

This method of determining the duration of pregnancy is used, as a rule, in the first weeks. But it doesn't always give accurate results. A blood test is taken from a vein.

Approximate hCG values for the first weeks of pregnancy:

2 - 25-300 mU/ml
3- 1500-5000 honey/ml
4 - 10000 - 30000 mU/ml
5 - 20000 - 100000 mU/ml

As you can see, the values can vary greatly, so there may be errors in the calculations. This analysis is ideally used not for calculating the timing, but for early diagnosis of pregnancy and its possible pathologies.

We have given the main ways to correctly calculate the gestational age. Some of them you can try on your own, others require medical intervention and some procedures.

Pregnancy is one of the most exciting and at the same time crucial periods in the life of every woman, and therefore it is not at all surprising that each of us wants to know the date of birth as soon as possible. However, this issue often causes numerous disagreements and disputes. Expectant mothers “torture” doctors with their questions, because they want to prepare for an important event, but they only shrug, because they are not able to accurately determine the date of the birth of the long-awaited baby.
In order to Calculate the date of birth, click the "find the date of birth" button.

Today: 18.03.2019
Date of the first day of the last menstruation:
Conception most likely happened (+-2 days):

Estimated due date:
Left before birth:

The calculation of the expected date of delivery (ED) is carried out in several ways, each of which is indicative. That is, if, according to estimates, the baby should be born on January 1, then it is not a fact that this will happen with absolute accuracy on that day. Very often there are deviations from the expected date in one direction or another. And childbirth can begin either 2 weeks earlier or later. I bring to your attention a fairly simple, but very effective way to find out the probable due date of a child, which has been successfully used by many doctors in clinics for quite a long time.

Calculation on the last day of menstruation

So to be on your own calculate gestational age and on it to determine the expected day of birth, it is necessary to remember the date of the beginning of the last menstruation. It is on its basis that all calculations are made. From this date, you must subtract 3 months and add another 7 days to the result. The resulting number will be the estimated date of birth of your long-awaited baby.
For example, the date of the last menstruation is April 22. So, from this date you need to subtract 3 months. Subtract and receive - January 22. We add another 7 days to this figure and get January 29 - this day will be the expected date of birth.
It is worth noting that this method of calculation is best suited for women with a regular menstrual cycle that lasts 28 days.

4 Alternative Ways to Calculate Due Date

1. You can find out the due date, with a fairly high accuracy, by visiting the gynecologist's office. The doctor will not prescribe any tests for this, he will simply measure the size of the uterus, which will increase in size in accordance with the age of the fetus. However, this method of calculating the date of birth of the baby is effective only in the first trimester of pregnancy. In the later lines (in the 2nd and 3rd trimester), in each woman, an increase in the size of the uterus occurs with different intensity, depending on the individual characteristics of the organism.
2. You can calculate the date of birth by ovulation, which is the most favorable period in which conception is most likely to occur. On such days, a woman usually experiences an increased sexual desire. In addition, her secretions (cervical fluid) become more sticky and thick, basal body temperature rises by a few tenths of a degree, the cervix rises, and the mammary glands thicken and become painful.

So, in order to find out when your baby will be born, according to ovulation, you need to add 280 days to this day (pregnancy duration). The resulting term will be the date of birth. If the period in which ovulation occurred is unknown, then calculate the middle of the last menstrual cycle, and then add the rest to it.
In the same way, you can perform calculations on the date of conception. However, you should be aware that this period does not always coincide with the day on which sexual intercourse occurred. Fertilization of the egg, as a rule, occurs only on the third day.

3. Hardware calculation using ultrasonic waves can also be attributed to the most effective methods that allow you to determine the term of delivery with an accuracy of 1-3 days. The most correct calculations will be if ultrasound is done during the period of 11-14 weeks of pregnancy.
4. To declassify the secret of the date of birth of your child will help his first stirring, which usually occurs on the 20th week (in nulliparous) and on the 18th - in the second and subsequent pregnancy. In ancient times, when there was no ultrasound, this method of calculating the due date was almost the only one.

As soon as the expectant mother feels the first tangible tremors of her baby in her stomach, then 20 weeks should be counted from that moment. The resulting date will be the probable day of the birth of the child. If the birth is not the first, the movements are usually felt earlier - at the 18th week, so you will have to add not 20, but 22 weeks to this period.

The effectiveness of hardware methods in calculating the term of labor

A study of the fetus in the third trimester on an ultrasound machine allows you to accurately determine the date of pregnancy, and hence the estimated date of birth. The fact is that only with the help of ultrasound diagnostics, the doctor can observe the condition of the placenta, the position of the baby's head in relation to the entrance to the small pelvis, the level of opening of the cervix, signs of fetal maturity, as well as many other important factors. All these parameters are decisive in determining the readiness of the future baby and his mother for childbirth.

Deviation from the deadline - is it the norm?

As mentioned above, all calculations of the estimated date of birth are nothing more than an approximate guideline, which should not be heavily relied upon. According to statistics, only 17% of women give birth on the appointed day, while the remaining 83% - either earlier or later. Thus, we can conclude that no specialist, no matter how smart and skilled he may be, is able to predict with high accuracy the date of onset of labor activity.
Normally, childbirth can occur between 38 and 42 weeks. pregnancy. The birth of a child will not be premature or belated, but normal and physiological. Sometimes, for certain reasons, labor can begin prematurely. This happens due to deviations in the development of the fetus, stressful situations, various pathological processes occurring in the mother's body, hereditary factors, etc.
Often there is a re-carrying of pregnancy due to the fact that in the first trimester there were any complications. In addition, maternal heredity should be taken into account. If your mother and grandmother gave birth much later than the due date, then most likely the same thing awaits you. Therefore, it is very important to realize that the calculation of the term of childbirth is a very complex, conditional and individual issue for each expectant mother.

How do the features of the menstrual cycle affect the date of birth?

The length of a woman's menstrual cycle also affects the duration of childbirth. For example, if it exceeds the standard twenty-eight days, then most likely the pregnancy will last more than forty weeks, and vice versa. However, in this case, the deviation in one direction or another usually does not exceed 5 days. It is worth noting that errors are often made in such calculations, since very often ordinary bleeding is taken for menstruation, which opened after the fertilization of the egg.

pregnancy calendars

Calculate your pregnancy calendar by week. Every week of your pregnancy from 1 to 40 weeks with details.

Pregnancy is an amazing and exciting time in a woman's life. In just 40 weeks, a whole organism is formed from one cell, capable of living in the environment. A person never again develops at such a rapid pace as in the prenatal period. Every day the appearance of the fetus changes, new organs, new abilities appear. The appearance and well-being of a woman is also rapidly changing - last month her “interesting position” was not noticeable to anyone, and today a pretty round tummy has already appeared. During the gestation of the fetus, you need to do a lot - you will have to go through more than one medical examination, pass several tests, review your menu and sleep patterns, change habits and update your wardrobe. It is better to prepare for all the changes in life in advance, and especially so that you are aware of all the upcoming surprises, we have prepared a detailed weekly pregnancy calendar.

Where does the two-week confusion come from?

Doctors in antenatal clinics traditionally count the duration of pregnancy, starting from the first day of the last menstruation, despite the fact that conception occurs, according to such calculations, only in the third week of pregnancy. Our interactive calendar is built according to the same scheme - this is the so-called obstetric pregnancy calendar. There is another, much less frequently used, method for calculating the duration of pregnancy, when the day of conception is taken as the starting point. The resulting calendar, it would be correct to call the calendar of fetal development. Sometimes this method is reflected in the conclusions of obstetric ultrasound, where it is possible to determine the life expectancy of the fetus with an accuracy of one day, especially in the first trimester. As a rule, the fetal development calendar lags behind the obstetric pregnancy calendar by about 2 weeks.

It is most logical to paint the pregnancy by weeks - so you will better imagine how your baby grows and what processes pregnancy causes in your own body. Studying the weekly pregnancy calendar, you will find timely advice on how to choose clothes for pregnant women, how to avoid toxicosis, how to eat right during pregnancy. Accordingly, each week the size of the fetus and its new skills are given - you will be surprised at how much it already has, when even the tummy is not yet visible to others!

In order to automatically calculate the pregnancy calendar, you can use the calculator on the site. It is enough to enter the date of the first day of your last period, and you will receive a weekly calendar of your own pregnancy. Perhaps it should be interesting for a pregnant woman to learn every week about how her baby's life is going, but you should not take the given terms literally. Keep in mind that the duration of pregnancy, as well as the rate of fetal development, is always individual and may differ slightly from the data provided by the interactive pregnancy calendar. The following pattern is characteristic - the longer the menstrual cycle, the longer the pregnancy lasts.

Questions for the article

Gram? Weight before pregnancy 80 kg, now 82.700. And seven weeks ago was ...

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2x five days)? 14 DPP - 1290 IU/L, 19 DPP - 6149 IU/L? Only on Uzi...

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Be monthly. I did tests 28, 30 and so on. All are negative. By 8...

Weeks found at home there is a cat and he is constantly at home on the street ...

Sometimes a little 3-4 times a day is it normal pregnancy 16 weeks?...

Menstruation was noted not expressed pain in the lower abdomen, now ...

My throat hurt, then my nose stuffed up, not big snot, isn't it dangerous ...

1.00-5.00 and immature granulocytes 0.3% ref. interval 0.0-0.2. What is...

Vozmojno chto ya beremenna?i esli da ,to kakoy srok?pojalusta otvette esli mojno?...

Menstruation 07/19/20015. Thanks!...

Detachment of the placenta. If I understand correctly, the embryo does not receive enough ...

The previous children also had a tone and the doctor constantly scares me ....

(there is no year 16) PERSONAL PREGNANCY CALENDAR FOR ...

Weeks! a slight runny nose, tickle in the throat and weakness! isn't it like...

The lower abdomen is like during PMS, there is no bleeding, is it dangerous ...

11/28/15 hCG showed 11564, which corresponds to 4 weeks of pregnancy, ...

At 6-7 weeks there was a threat of miscarriage, with a second pregnancy it can ...

Years, the cycle was approximately 34-35 days, but not exactly. pregnancy on...

The test showed that she was pregnant. but I don't remember the last date...

Keep in mind that, according to the calculations, I had to gain at least 5 kg ...

Regular. Now the delay is 7 days. Tests neg. On cycle day 16...

Accounting for pregnancy with a weight of 76.4 kg (term 5-6 weeks). Then I suddenly...

Menya.vozmojno beremennost v etom mesyace?i chto mojno zdelat zaranee chtob eto ne sluchilos?...

The beginning of menstruation on 09/02/15, in fact, conception occurred from 3 to 5 ...

Came with a delay of 2-3 days, the end in my 7.05 or 8.05. Sexual intercourse in...

The fact that the gynecologist did not listen to me carefully. The fact is that...

The anterior wall of the uterus. progesterone and papaverine were injected. everything ...

Praise and accept the likeness of the world? The date of the remaining months is 01.07.12....

Evenings before going to bed, not knowing that she is pregnant (for a period of 3-4 weeks) ....

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To create an individual pregnancy calendar, use the form below. All that is required of you is to enter the date of conception or the last menstruation. You will receive an accurate calculation by week, with a detailed description of the development of the child and medical recommendations by date. Watch your baby's development online, send the link to the calendar to your email or print it out.

EDD Calculator - Estimated Date of Delivery
with pregnancy calendar

Calculation option:

If you know the exact date of conception of the child, use the first option. Or choose the second option, the estimated date of delivery will be calculated automatically, according to the date of the beginning of the last menstruation.

Start date of last menstrual period:

Cycle duration:

On average 28 days. If you don't know the exact length of your cycle, leave the default value.

28 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 days

Conception date:

Having learned about her situation, the expectant mother wants to find out everything about the ongoing processes and stages of development of the baby, to study the advice and recommendations of specialists. It is also worth compiling a weekly pregnancy calendar and calculating the date of birth in order to better prepare for this event.

Principles for calculating the calendar of pregnancy and PDR

In order to calculate the pregnancy calendar for weeks and days, it is necessary to count from the day of ovulation in the last cycle. It was then that conception most likely occurred. In the absence of knowledge about this day, the date of the last menstruation is also suitable. This is how gynecologists count. Consider the features of the calculations in each case.

Due Date Calculation Accuracy and Rationale

The weekly pregnancy calendar allows you to calculate the date of birth exactly up to 1-2 days, if the cyclic processes in a woman proceed rhythmically and without failures.

The calculations are based on knowledge of the length of these processes that occur monthly in the body:

follicular phase. Several follicles are born in the ovary, one of which begins to grow more rapidly, while the rest gradually disappear. A cell appears in the bubble, which gradually matures due to the action of certain hormones. With a deficiency or imbalance, a failure is possible when the cell does not have time to mature or there is no follicle in principle. There are also situations of reverse action, when two cells have time to mature in one cycle. The phase takes 11-17 days on average, but ideally 14 days.
Ovulation. When the cell has reached the peak of its growth, it breaks the wall of the vesicle and enters the genital tract. Her movement is aimed towards the uterus. With a successful meeting with sperm in them, it will be fertilized. In the absence of such, it will die approximately in a day. So much is normal and this phase lasts, but there are also long periods - up to 2-3 days, or short ones - 12 hours. At other times of the cycle, conception is impossible due to the lack of a ready-made cell.
luteal phase. The process is designed to prepare the body for the adoption and bearing of the fetus. The hormone progesterone, produced by a special temporary body, which is called yellow because of its specific color, affects the normal course of these processes. It grows at the site of the rupture of the follicle. In the absence of fertilization, menstruation occurs 14 days after cell death. With a successful process, the fetal egg reaches the uterus in 5-7 days and is implanted for subsequent development. The hormone accompanies the changes taking place in the body and is produced throughout the pregnancy.

A fascinating and colorful video about the development of a child from the moment of conception to childbirth, the entire pregnancy in 15 minutes

It is easy to calculate the weekly pregnancy calendar by the day of conception (ovulation), knowing the timing of each stage of the cycle. To do this, it is enough to subtract 14 days from the length of the cycle (the luteal phase, which is the same for everyone in duration). The resulting number is counted from the day of menstruation. This is the day the cell comes out, which is similar to the date of conception. Knowing her, it is easy to calculate the date of birth using the usual calendar and prescribe weeks and trimesters.

Calculation by a doctor or independently

When calculating the date of conception, doctors determine the average parameter (standard), counting 14 days from the last menstruation.

Paying attention to the delay, completing the test and receiving an effective response, you can calculate the pregnancy calendar by week and the gestational age yourself. To do this, it is enough to determine your moment of ovulation and count the days from it to today. Therefore, preparing for conception, you should follow your body for several months in order to determine the cyclicity and regularity of processes. If they are repeated at regular intervals, there will be no problems with the calculations.

Irregular Cycle Calculation

With irregular cycles, calculations rarely help. Usually, they show a very significant error - up to 1-2 weeks. Therefore, in this situation, it is better to find out the gestational age by ultrasound.

Prediction of the sex of the child

There is an opinion that a weekly pregnancy calendar will help calculate the sex of the child. Unfortunately, this is a misconception. Gender can only be predicted by the date of conception. In doing so, the following principles should be followed:

Sexual intercourse two days before ovulation guarantees the birth of a girl. Spermatozoa, which are responsible for the appearance of a boy, die a day before the appearance of a cell in the genital tract.
On the day of ovulation and 12-24 hours later, conception will give a boy. The spermatozoa that cause the birth of a son are faster and reach the cell sooner than those responsible for the birth of a daughter.

The sex of the child can be predicted or determined by the date of conception, for this, use our ovulation calculator

When compiling a weekly pregnancy calendar, sex can be calculated according to a similar principle if the dates of productive sexual intercourse are known. But often couples spend more than one act in anticipation of a happy moment, and therefore it is very difficult to find out exactly which of them led to fertilization. If you want to predict the sex of your future baby, you should set the dates of fertilization in advance, guided by the above principles.

Definition of ovulation

Of course, you need to be able to accurately determine your day of release of the cell. There are several ways to do this:

Conducting home tests. They show a reaction to a surge of the LH hormone, which increases dramatically at times at the moment the bubble bursts.
Using a microscope. Looking at a smear of saliva, one can trace the change in the pattern of salts that form a fern leaf by the time the cell appears.
Women's selection. Until the day of ovulation, the mucus practically does not come out. On the eve and during it, it is plentiful, thick and viscous, outwardly resembling egg white.
Pain in the ovary. Not all ladies feel it, but this is a clear sign of a rupture of the follicle wall. It can feel quite insignificant. It is worth listening to the body so as not to miss it.
basal temperature. A graph is drawn up according to the parameters of rectal temperature. A decline followed by a peak indicates ovulation. Measurements are carried out strictly according to the rules in order to prevent a failure.
ultrasound. The doctor will reliably be able to follow the growth of the bubble and call the date of its rupture.

Making a pregnancy calendar online

We suggest using an online calculator to obtain the most reliable information, so as not to engage in independent calculations. Using the service allows you not only to get an up-to-date pregnancy calendar by week, but also to calculate the gestational age, with a photo of the fetus at each stage. To request your data, just select the option based on the available information:

by date of fertilization;
on the first day of the last menstruation.

Next, you need to enter a specific date by selecting on the calendar. If the calculation is carried out according to the second option, you will also need to enter the duration of your cycle. If it is not known, it is recommended to leave the standard parameter - 28 days.

Calculation result data

After filling in these parameters, the girl receives a ready-made pregnancy calendar by week and can calculate the date herself or look in the answer. It will be indicated in the result, which is a detailed description of each week:

features of the development of the fetus;
medical indications for specific dates.

The girl can print out a complete table for herself or save it electronically. It is very important to understand what exactly is being formed in the embryo at a particular moment. This will help to eat properly, saturating the body with the necessary elements. For example, during the development of the liver, kidneys and internal organs, some vitamins are needed, and during the formation of bone or muscle tissue, they are completely different. You will also find out at what point toxicosis can be expected, and when its appearance will be an alarm.

Using descriptions by week

Having received your personal pregnancy calendar (calculated by weeks) with a description, it is easier for the expectant mother to decide on the time to visit the doctor for examinations, tests and ultrasound. The girl has the opportunity to compare her results with the standards, because she has indicators of the size of the embryo every week. When undergoing ultrasound, in your pocket calendar you can clarify how timely the fetus develops, whether the organs necessary for this stage have already appeared, etc.

The results table also describes the sensations that the expectant mother should experience. It is necessary to know them in order to understand which ones are considered natural and should not cause alarm, and having experienced which ones, you should visit your doctor. For example, when false contractions are possible, and when the uterus enlarges to such an extent that it can cause discomfort and even heartburn.

Analyzes and examinations

If you've used a weekly pregnancy calendar to calculate your due date, it's a good idea to confirm it by visiting your doctor. Usually, the first visit falls on the second week, when the girl already clearly suspects her condition and feels the first symptoms. The first tests are taken immediately. They are necessary to confirm the normal development of pregnancy. The mandatory list includes:

ultrasound. It is necessary to make sure that the fetus is properly embedded in the endometrium, and there is no ectopic pregnancy or other pathology.
Blood analysis. The level of hemoglobin is controlled, a coagulogram (blood clotting), biochemistry is performed.
Analysis of urine. Checking the main parameters: protein, leukocytes, glucose, bacteria, erythrocytes.
Additional analyses. If the doctor has not previously observed the patient and before conception did not test for the presence of diseases and for the content of antibodies that help prevent dangerous diseases (for example, hepatitis), then he prescribes them at this stage.

Regular examinations

Having received your weekly pregnancy calendar with a photo, it will not be difficult to calculate the days for the next visits and analyzes. Usually, a urinalysis is performed at each visit - after 1-2 weeks, in order to immediately identify any deviation from the norm. Also appointed:

HCG level. It's a pregnancy hormone. It reaches a maximum by the 11th week, after which there is a decrease.
Blood plasma protein. Its quantity tells the doctor about the development of the baby.
progesterone level. This hormone contributes to the normal development of pregnancy. With its deficiency, you will need to drink special preparations containing it.
ultrasound. Allows you to identify the presence of malformations at an early stage.

Analyzes at a certain time

An accurate weekly pregnancy calendar will allow you to calculate subsequent dates for tests, which mainly consist of checking urine to detect abnormalities and blood:

14-20 weeks. The platelet count (coagulogram) is checked again and tested for toxoplasmosis if it has not been done before.
25-30 weeks. Checking the level of hemoglobin. At the 30th week, a coagulogram is done again and smears are taken. If there is a need (at the discretion of the doctor), a glucose tolerance test and an analysis for ferritin are performed.
34-40 weeks. Complete biochemical blood test, incl. on RW. The most important thing now is checking for ultrasound and cardiotocography. The results will be more informative regarding the ongoing processes. Additional examinations are prescribed individually.

Proper nutrition by week

If you have already managed to calculate a weekly pregnancy calendar with a description and a photo, you should still heed the nutritional advice. The table does not cover this issue so extensively, additional information will need to be studied.

So, as the weekly pregnancy calendar tells us (which you can calculate on this page), the first two weeks are the main ones, because it is precisely the moment of birth that occurs. To avoid the appearance of toxicosis at this moment, it is better to exclude or significantly reduce the consumption of sweet, fatty and fried foods. It is necessary to increase the consumption of dairy products, cheeses, fruits and cereals, and completely abandon harmful poorly digestible foods - fast food, french fries. Many gynecologists recommend taking folic acid during this period, which contributes to the development of the fetus and, in general, has a positive effect on the female body.

Nutrition is a fundamental factor for the proper development of the baby. "Wrong" products can lead to a deficiency in his body of microelements that are needed at the moment. In addition, there are recommendations that will help keep the figure, which is important for many modern mothers.

The pregnancy calendar, calculated by weeks, with a photo and a description of the stages of development, will tell us recommendations for the remaining terms:

3rd week: calcium is needed, because. skeletal formation takes place. We include dairy products, green vegetables, fruit juices. You also need to consume foods with zinc and manganese: lean meats, eggs, nuts, bananas, oatmeal, carrots.
4th: refusal of coffee. By this time, the body has already rebuilt and is able to adapt to changes, even if you are an avid coffee drinker. By the way, it will be much easier to quit smoking at this moment if the girl could not do it earlier.
5th: toxicosis. To soften and, if possible, avoid it, you should eat: cheese, carrots, nuts. Replace meat and eggs with legumes and soy. If any products cause discomfort, you should refuse them.
6-12. The body itself tells when, what and how much it wants. It is necessary, however, to correct his urges. For example, with rapid weight gain, it is worth replacing flour and pasta with products made from wholemeal flour. Reduce sugar, cabbage, fried foods to a minimum. Drink enough liquid (from 1 liter). In order not to fill up at night, you can consume dried fruits. There is no need to be afraid to eat foods that are unusual for you, if you want to. The kid sends his signals and it is worth indulging them.
13-16. The formation of the skeleton and tissues is almost complete. It is worth adding more useful products, the growth of the baby is rapid and mother's resources are heavily spent. Feelings of hunger and malnutrition can haunt. Then it is better to drink the usual dish with a glass of kefir or eat an apple, i.e. supplement your meal with a healthy product.
17-24. The formation of the sense organs begins, as prescribed in the calculated weekly pregnancy calendar, childbirth is not soon, but it is important to introduce a large amount of vitamin A into the diet: bell pepper, carrots, cabbage.
24-28. The uterus enlarges, there is pressure on the stomach and a feeling of heartburn is possible. You should reduce the amount of fatty, spicy, carbonated water. Portions are best done small, but eat often.
29-34: Brain and bones form. Calcium, fatty acids are needed: milk, red fish, eggs, nuts, broccoli. Sweets, confectionery - remove or replace with porridge with fruits and nuts.
35-40. It is necessary to strengthen the body for the coming test: vegetables, cereals, products made from wholemeal flour.

Video about proper nutrition during pregnancy from a highly qualified specialist

conclusions

So, to help the expectant mother, there is a weekly pregnancy calendar, which allows you to calculate the date of birth and the sex of the child. Having saved the result for yourself, you will be able to correctly adjust the diet, control the timeliness of the tests and understand what stage of formation your baby is going through. This will undoubtedly help to properly prepare and give birth to a healthy baby.