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Basal temperature rates after conception before delay. Symptoms and physical abnormalities. Diagnosing pregnancy on schedule

Seeing the two long-awaited strips on the test, you begin to carefully monitor any changes occurring in the body.

Basal temperature during early pregnancy reacts to the smallest fluctuations in the hormonal system and allows you to calculate deviations from the norm and promptly seek help from an antenatal clinic.

What is basal temperature

  • Basal or baseline temperature (hereinafter BT) is called one that is practically unaffected by the external environment;
  • You can get its values ​​in the morning without getting out of bed, after a full night's sleep;
  • Measurements are taken with a thermometer placed in the mouth, vagina or rectum;
  • The BT values ​​are influenced by hormones such as estrogen and progesterone, the level of which changes in accordance with the days of the menstrual cycle.

Know! Obstetricians-gynecologists consider BT as an indicator of the health of the female reproductive system. Comparison of graphs for several cycles can reveal violations in the hormonal background, the period of ovulation, as well as inflammatory processes.

Even at the stage of planning a child, BT values ​​will help determine a favorable period for conception without the use of expensive tests and ultrasound diagnostics. The only caveat is the strict observance of all standards during measurements.

Why can you trust your basal temperature?

The menstrual period has two phases.

  1. During the transition from one phase to another, ovulation is observed. The whole essence of the method is to build a graph based on daily BT readings;
  2. For the first half of the cycle, low numbers are characteristic, and for the second - high, due to the effect of progesterone.

Ovulation on the graph looks like a sharp drop.

The BT value drops rapidly about a day before the onset of ovulation, and rises sharply the next day. Lowered BT values ​​are evidence of the imminent onset of menstruation, but during fertilization in the second phase, they will be steadily increased.

You can use the basal body temperature measurement method if:

  • attempts to get pregnant last longer than a year;
  • it is necessary to identify violations in the work of sex hormones;
  • you need to predict the right time for conception;
  • it is necessary to determine the presence of pregnancy before the fact of delayed menstrual bleeding.

How to determine pregnancy by basal temperature?

The entire menstrual period can be tracked on the basal temperature graph. During pregnancy, the picture is significantly different from that which can be seen during a normal cycle.

  1. The very first phase of the female period is follicular (hypothermic). At this time, a follicle is formed, inside which an egg matures. The first phase is characterized by increased production of estrogen due to the increased work of the ovaries;

Favorable BT values ​​are from 36.1 to 36.8 degrees. Values ​​at the upper end of the range are usually accompanied by a lack of estrogen. In such cases, doctors recommend appropriate hormone therapy.

  1. The moment of ovulation. The follicle is ruptured by LH (luteinizing hormone) and the egg is released, with a hormonal surge. At this stage, BT values ​​sharply increase to 37.0-37.7 degrees;
  2. The last phase is luteal (hyperthermic). Instead of the bursting follicle, the corpus luteum begins to form, which is a source of progesterone.
  • In the case of fertilization of the egg (during the time of implantation, BT decreases), it enters the uterus. At the same time, the corpus luteum continues to grow, releasing hormones that allow to maintain pregnancy and prevent uterine contractions;

It is these hormones that make the BT values ​​stay at the upper limits. The corpus luteum functions until the placenta is completely formed.

  • Favorable BT values ​​are above 37 degrees;
  • If conception does not occur, the corpus luteum is destroyed, and the level of hormones falls. BT values ​​also decrease and menstrual bleeding occurs.

Temperature - below ovulation

Typically, the basal temperature during early pregnancy is 37.1-37.3 degrees.

It happens a little lower, within 36.9 degrees.

You can identify this by recording the basal temperature values ​​over several cycles.

The only invariable sign with the possible fact of pregnancy is the absence of a low basal temperature after the release of the egg from the ovary.

Features of "pregnant" and "non-pregnant" charts

To understand which basal temperature is characteristic of the body during pregnancy, and which is in various pathologies, you need to pay attention to the main characteristics of the graphs.

"Pregnant" schedule:

  1. low BT in the follicular phase of the cycle;
  2. ovulation is clearly identified (a sharp jump in BT up);
  3. increased BT in the luteal phase of the cycle;
  4. somewhere on the 21st day, BT values ​​noticeably decrease (egg implantation occurs) and then the temperature rises again;
  5. there is a third phase of the cycle - gestational - with a BT value equal to or exceeding the ovulatory one.

Normal "non-pregnant" schedule:

  • in the first phase, BT values ​​are below 37 degrees;
  • immediately after the ovulation phase, BT begins to grow and continues to be further at 37 degrees almost until the end of the second phase;
  • a few days before the onset of menstrual bleeding, the BT value drops sharply.

The anovulatory graph is characterized by chaotic bursts of BT throughout the cycle. Such periods are in women up to three times a year.

How to correctly measure the temperature to determine pregnancy

The most accurate readings will be with rectal introduction of a thermometer. In this case, the thermometer can be either electronic or mercury, depending on personal preference. Below are the basic rules on how to measure basal temperature to determine pregnancy:

  1. Measurement of the basal temperature when planning pregnancy should be done daily in the morning at a certain time after sleep, lasting more than six hours. You should not leave bed soon after waking up or sit up abruptly;

In addition, frequent walking while resting at night skews research data.

  1. In the daytime and evening hours, there are quite strong fluctuations in BT due to stress, increased activity or banal fatigue. It is not necessary to double-check the morning measurements in the afternoon and in the evening, as it is not informative;
  2. The temperature is measured with a mercury thermometer for 6-10 minutes, with an electronic thermometer - from 2 to 3 minutes or until a sound signal;
  3. For clarity, it is best to start taking measurements and building a graph from the day of your period. This will allow you to see the temperature difference during the transition from one phase of the cycle to another and assess the hormonal background;
  4. For the convenience of taking measurements, you can use a regular paper sheet, a printed template, or applications that automatically generate graphs based on the entered data.

For your information. The following factors affect BT indicators:

  • alcohol;
  • sex a few hours before the measurement procedure;
  • stress;
  • infectious diseases;
  • too warm sleeping place, for example, from a heating pad;
  • hypothermia of the lower extremities.

If any of the listed factors took place, it is worth making a note about it.

What indicators lead to the conclusion that the pregnancy did not take place?

High basal temperature indicators, which persist for a long time, with a possible pregnancy, until the delay is confirmed, unfortunately, are not always a sign of a successful conception.

In some cases, such a change may be associated with inflammatory processes in the appendages, and sometimes indicate complications in the course of the gestational period.

Important! It is worth noting that you do not need to start to panic when you find deviations from the norm, since each organism is unique. In case of any doubts, it is better to consult a specialist for an accurate diagnosis.

BT with a threat of miscarriage

The risk of miscarriage is associated with insufficient production of the hormone progesterone, which supports pregnancy. This happens when there are problems with the hormonal background and an incorrectly functioning corpus luteum, which normally appears instead of a follicle.

Know! With this pathology, the values ​​do not exceed 37 degrees.

Thus, if the basal temperature during pregnancy is 36.8 or one tenth of a degree higher, you should pay attention to this and try to understand the reasons for such changes.

BT with a frozen pregnancy

If the development of the embryo stops, the gland formed at the site of the follicle begins to break down, and the level of progesterone, therefore, falls. This leads to a decrease in BT values ​​to 36.4 - 36.9 degrees.

There are times when, when the embryo freezes, the temperature continues to be kept at a sufficiently high level. True, it happens when a low temperature is not at all an indicator of fading. You should always listen to yourself and your inner state.

BT for ectopic pregnancy

Important! In this case, the production of progesterone by the corpus luteum does not stop, as in the normal course of pregnancy. In this case, it is impossible to draw conclusions based on the BT values.

In the second and third trimesters, it does not play a significant role. It is important to remember that accuracy in measurements is necessary, as any deviations will affect the interpretation of the results.

Ask questions about the topic of the article!

The human body is an amazing and subtle system. On the one hand, typical processes, cycles and situations occur in each of us, on the other hand, in each specific organism they all have their own characteristics. Perhaps the most striking example of this is the female body and its reproductive system.

Every woman over 15 is certainly familiar with the menstrual cycle. In any case, with his external resistance - menstruation. However, the essence of the cycle and related processes eludes many. Although knowledge of these processes helps not only to properly plan your time, taking into account the menstrual cycle, but also to diagnose pregnancy in the early stages. But this is the dream of so many women planning pregnancy.

The graph for measuring basal temperature during pregnancy before delay can help in this. However, in order for this to become possible, the schedule must be kept at least 3-4 months. Only this will allow us to trace the features of changes in basal temperature in a particular woman.

What is basal temperature and how is it measured

We all know from childhood how the body temperature is measured - a thermometer under the arm, wait five minutes and see the result. However, few people know that this is how the temperature of the skin is measured, and nothing more. The temperature of the internal organs and cavities will be slightly different. That is why many doctors now recommend measuring the temperature in the mouth or in the auricle.

And there is also such a concept - basal temperature, or rectal. To find out, the measurement must be carried out in the rectum. Moreover, this must be done strictly observing certain rules, since a huge number of factors affect the basal temperature, starting with physical activity.

How should you measure basal temperature to determine early pregnancy?

  • it is important to measure the temperature at the same time, with a difference of no more than 30 minutes;
  • you need to take measurements in the morning without getting out of bed, you can not even take a sitting position;
  • you need to keep the thermometer for at least 5-7 minutes;
  • it is necessary to take readings immediately after pulling out the thermometer;
  • the received data is recorded in the schedule;
  • it is imperative to mark in the graph the possible reasons for deviating from the usual schedule, such as colds, inflammations, and so on.

Why measure basal temperature?

The fact is that the basal temperature changes during the cycle in a certain pattern. At the beginning of the cycle, it decreases, by the time of ovulation, on the contrary, it becomes higher. That is, if you keep a graph of changes in basal temperature, you can calculate the most favorable days for conception. Usually, it is for this purpose that women take up this occupation. What happens to the basal temperature during pregnancy before the delay? And can BT be considered a sign of pregnancy?

Change in basal temperature during pregnancy

As mentioned above, in the first part of the cycle, starting from about 3 or 4 days after the end of menstruation, the basal temperature drops to 36.5-36.8 degrees. This temperature is necessary for the maturation of the egg. The day before ovulation, the temperature drops sharply, and then rises no less sharply to about 37 degrees, sometimes slightly higher.

About a week before the start of menstruation, the basal temperature begins to decrease, unless of course pregnancy occurs. And if it comes?

The thing is that the hormone progesterone, which begins to be produced immediately after ovulation, is responsible for the increase in basal temperature during ovulation.

If conception does not occur, then the level of progesterone decreases, therefore, the basal temperature also decreases. If conception occurs, then the level of progesterone remains, and the temperature remains high. Basal temperature during pregnancy before delay equal to about 37 degrees.

If a woman keeps a chart of basal temperature for several months, then in case of pregnancy, she will notice that about a week before the start of menstruation, the basal temperature, instead of the usual decrease, continues to remain at 37 degrees. In this case, you can most likely assume that you are pregnant.

Basal temperature can be read the first sign of pregnancy, even before the delay. However, it should be borne in mind that this is not the most reliable way. The fact is that an increase in basal temperature can also be caused by other reasons, including gynecological diseases, infectious processes, physical activity, taking certain medications, and so on.

Any woman who wants to feel the joys of motherhood in the near future carefully examines the information regarding fertilization, the course of pregnancy and the birth process. Without a doubt, this period in life is very important and requires special preparation.

In order to understand the characteristics of your body and understand the processes taking place in the female reproductive system, you can begin to measure basal body temperature during pregnancy planning. Then you will know the exact date of conception and can be sure that you are pregnant even before your period begins.

Understanding this will make it possible for the basal temperature before the delay in the constructed schedule, along with other signs of pregnancy, listed below:

  1. small discharge with blood (implantation bleeding),
  2. quick fatigue,
  3. pulling pains in the lumbar region and lower abdomen,
  4. nausea and an acute reaction to odors,
  5. increased appetite,
  6. a slight increase in body temperature,
  7. increased basal body temperature.

Basal temperature before delay

As soon as conception has occurred, the basal temperature rises and remains elevated throughout the first trimester. A woman may not know about her pregnancy, but if she keeps a chart of basal temperature, she will immediately notice a change in temperature readings upward. And ovulation became the starting point.

From about the fourth day of menstruation, the basal temperature will be 36.4-36.8 degrees, this is the optimal conditions for the egg to mature and develop. By the middle of the cycle, on the day of ovulation, there is a sharp jump in temperature upward, and the temperature will average 37.2-37.5. For each woman, these temperature readings will differ, but this difference will be insignificant. If there was a temperature difference of five tenths of a degree, then ovulation was successful.

An example of a basal temperature (BT) graph during pregnancy before a delay

The basal temperature before the delay will increase. This is due to the intake of a large amount of the hormone progesterone, the brain activates its production in order to prepare the body for bearing a fetus and subsequent childbirth.

If conception has taken place, progesterone will keep the temperature elevated during the first trimester of pregnancy. But if conception does not take place, the production of progesterone decreases, it is replaced by the production of estrogen, and the temperature will drop until the next menstruation.

What is the basal temperature during pregnancy before the delay?

Basal temperature before the delay will help determine pregnancy. If you find an increase in temperature after the day corresponding to ovulation, continue measuring. If in the next 18 days the temperature does not decrease, then the pregnancy has taken place.

A successful conception may be signaled by a decrease in basal temperature on one of the days at a time when the highest BT values ​​are noted.

This phenomenon has a definite term in medicine, and is called "implantation retraction", and it is observed at the moment when the egg is fertilized and attached to the uterine wall. At this time, estrogen is released, which causes a drop in temperature downward.

During pregnancy, an elevated basal temperature before a delay is one of the main signs that help determine pregnancy from an early stage. This statement will be true if you know all the rules for measuring basal temperature and strictly follow them.

The stability of the basal body temperature graph indicates that the reproductive system of the woman is in perfect order and the conception will be favorable.

If you are planning to become pregnant soon, then it makes sense to follow the basal temperature chart. So you can reliably track the onset of ovulation and find out about pregnancy even before the delay in menstruation. More on this in the article below, which also provides examples of basal charts during pregnancy.

The human body is a very complex system. It constantly undergoes cyclical changes and processes beyond our control. This is especially true of a woman's reproductive system. Nevertheless, it is possible and necessary to track some processes, in particular the basal temperature. This information will not only help you choose the best day for conceiving a child, but also monitor the condition of the fetus throughout the pregnancy.

Basal temperature is body temperature measured in the rectum, mouth, or vagina. The temperature indicator, when measured, is influenced by the hormonal component in the woman's body. The higher the level of progesterone in the blood, the higher the basal temperature.

It is worth noting that basal temperature should be measured only in a state of calm, best after a night's sleep, which lasted at least 7 hours. This is due to the fact that during the day the temperature constantly changes depending on the woman's activity, and in the morning, when the body is awakening from sleep, BT will be the most constant.
The effectiveness of the method is accurate only under the condition of constant monitoring of the basal temperature. Regular measurements should be carried out for at least three months, in compliance with all the rules, until the time of the planned conception of the child.

How to measure basal temperature

In order for the basal temperature indicators to be most accurate, when measuring it, you need to follow these rules:

  • basal temperature measurement should be made in the mouth, vagina or rectum. The last option is considered the most informative. It is worth noting that it is necessary to measure BT during the study period in the same place, otherwise the graph will be considered inaccurate;
  • in order to avoid instrumental error, it is necessary to use the same thermometer. It can be mercury or electronic - your choice;
  • basal temperature should be measured in the morning, at the same time every day;
  • it is best to measure basal temperature without getting out of bed, try not to even sit down before the procedure, as the body should be in a state of complete rest;
  • the measurement duration should be 5-7 minutes or until the sound signal, in the case of using an electronic thermometer;
  • you need to start keeping a basal temperature graph from the first day of the cycle and not interrupt measurements even during menstruation.
  • measurements were made at different times of the day;
  • the body was not at rest;
  • the woman has had viral diseases (ARVI) with an increase in body temperature;
  • while maintaining the schedule, the woman took medications, in particular hormonal drugs;
  • during the cycle, the woman was very active and did not sleep much (there were long trips or air travel);
  • a large amount of alcohol was drunk on the eve of the measurement.

Basal temperature chart during a normal menstrual cycle

As mentioned above, basal temperature measurements should be taken starting from the first day of the cycle. So, in the first phase of the menstrual cycle, with the correct functioning of the reproductive system of a woman, BT should be equal to 36.4-36.7 degrees.

By the middle of the cycle, this figure drops to about 36.2 degrees. Then it rises sharply to 37 degrees and above. This mark on the thermometer indicates the appearance of ovulation and the most favorable days for conception.

After the completion of ovulation, the temperature drops again, to about 36.7 degrees.

Basal temperature chart for anovulatory cycle

The anovulatory cycle of menstruation is a period when ovulation and maturation of the corpus luteum are not observed in the female body. At the same time, the regularity of menstruation remains.

It should be noted that the anovulatory menstrual cycle is normal and does not indicate any changes in a woman's reproductive health. It happens once or twice a year.

The basal temperature graph during the anovulatory menstrual cycle fluctuates at around 36.4-36.7 degrees and does not increase in the second phase.

Basal temperature chart during pregnancy before delay

Thanks to the basal temperature indicators, you can find out about the onset of pregnancy even before the delay in menstruation. The fact is that the hormone progesterone is responsible for the increase or decrease in BT. During ovulation, its content in the blood rises significantly, and the temperature of the internal organs increases. So, if conception has occurred, then its amount does not decrease, which means that the temperature is also preserved. If you notice that BT did not decrease after the expected end of ovulation and is kept at around 37 degrees and above, then you can most likely be congratulated on the successful conception of the fetus.

The BT schedule during pregnancy before the delay is not 100% accurate, so it is also recommended to make a test strip.

Basal chart during pregnancy, photo:

Basal temperature chart for early pregnancy

If you are sure that you are pregnant, then you should not stop keeping the schedule. Indeed, with the help of information about the temperature during pregnancy, you can control the condition of the fetus and the possibility of inflammatory processes.
It is especially important to control the BT schedule during early pregnancy if:

  • you have had miscarriages before;
  • the previous pregnancy ended in fetal fading;
  • you are being treated;
  • there have been cases of ectopic pregnancy.

In the first trimester, the normal basal temperature should be kept at around 37-37.2 degrees. If it increases, especially exceeds the indicator of 37.5 degrees, then this is a serious reason to consult a doctor.

Examples of basal temperature charts during pregnancy.

Pregnancy temperature chart

If your pregnancy is proceeding normally, then after 20 weeks the basal temperature will decrease, and marks of 36.8-36.9 degrees should appear on the graph. If you see a slight increase in BT in the second trimester (by 0.1-0.2 degrees) - do not be alarmed, perhaps this was due to heavy loads on the body or your activity the day before.

Just as in the second trimester, in the third basal temperature is slightly lower than that which was immediately after conception and is kept at around 36.9 degrees.

The reason for worries may be an increase in basal temperature in the second and third trimester above 37.3 degrees. This may indicate:

  • inflammatory processes, in particular the pelvic organs;
  • exacerbation of infectious diseases;
  • placental abruption.

It is worth noting that it is extremely important to track the BT schedule during pregnancy by week until the 18th week. After 20 weeks of pregnancy, this procedure is practically useless, since both you and the baby will be under constant medical supervision. Compared to regular check-ups with a doctor, the BT schedule will generally not be informative.

Basal temperature chart during pregnancy. Video

The easiest and most affordable way to determine the onset of pregnancy at an early stage is associated with measuring basal temperature... Those women who are looking forward to the appearance of a baby are probably familiar with this method.

It appeared simultaneously with the calendar method of prevention, and usually successfully complements it.

In this article, we will talk in detail about the diagnosis of pregnancy. in the early stages using this method, deciphering indicators and their rate for different periods.

Basal temperature is internal temperature human body. It is measured with a thermometer in the mouth, female genitals or in the anus. Measurement should be done in the early morning, as soon as the woman woke up. In this case, a thermometer is placed by the bed so that it is easy to reach it.

For cycle control and planning pregnancy, its timely determination, it is necessary daily, from the first day of menstruation, to measure the temperature, and enter the result on schedule... The most informative is to measure the temperature through the rectum. For this purpose, a conventional mercury thermometer is optimal, as it gives the most accurate results.

Early in the morning, after waking up, while the body is in a relaxed state after sleep, it is necessary to enter a thermometer and wait 5-7 minutes... The result obtained is recorded in a notebook for keeping a schedule, or saved in a mobile application.

The rate of indicators in different periods

On the days of menstruation, the temperature is normal. 36.7 - 36.9 degrees... By the time of ovulation, it begins to rise, reaching its peak - 37.2-37.4 degrees. After the onset of ovulation, the temperature should start to decline- if conception did not occur. This usually happens 7-8 days before the expected date of your period. On the days before menstruation, it drops to 36.8 -36.9 degrees. If conception has occurred, the temperature continues to remain at the level of 37.1-37.4 degrees.

Fever is common in the first trimester of pregnancy. After 19 weeks, she begins gradually decline, rising again by the third trimester - this is a harbinger of imminent childbirth.

Immediately after conception has occurred, the basal temperature rises by several tenths of degrees, and continues to hold at this level, which makes it possible to identify onset of pregnancy... If the thermometer stably shows 37.2 degrees before menstruation, you can be congratulated. We should expect an addition to the family soon.

Basal temperature before delay

As mentioned above, the basal temperature measurement method can allow a woman to plan conception and determine the onset of pregnancy.

If you are keeping a graph of temperature, then pay attention to the following points:

  • after ovulation, the temperature dropped for one to two days, to 36.9-37 degrees;
  • after this jump, the temperature rose again, reaching 37.1.-37.3 degrees.

This factor indicates completed conception... Further, the fertilized egg attaches to the wall of the uterus, and the body begins to produce progesterone, which affects the increase in body temperature. In the early stages of pregnancy, the temperature is kept within 37.1.-37.3 degrees, without dropping before the onset of the expected menstruation.

Delay temperature

If you have a delay in menstruation, but you have not yet tested using a pharmacy strip test, you can use the diagnostic method by measuring basal temperature.

If the temperature is within 37.1 - 37.3 degrees- you are most likely pregnant. Only colds, latent infections, or physical activity before testing can affect the result.

In the evening, the body temperature is often elevated due to physical activity during the day. If you are going to take a temperature measurement, remember that you need to rest for at least 3 hours before this in order to get the correct result. If you already know for sure that you are pregnant, the temperature can be measured at any time of the day, as this will allow you to notice any deviations in time and take action.

In the evening, the temperature can be from 37.2 to 37.6 degrees during pregnancy.

Basal temperature at 20 weeks gestation

Basal temperature is highest during the period of active production of progesterone in the body. This period lasts during the first trimester, then, by 19-20 weeks, indicators are decreasing... Further temperature measurements, as a rule, are not carried out, because the method ceases to be informative.

Optimal performance for a period of 20 weeks is 36.7 - 36.9 degrees.

"I have a temperature ..." - what does it mean?

Here we have compiled a transcript standard indicators, which will help you navigate whether there is a pregnancy, or wait for the imminent arrival of menstruation.

Temperature 36.9

  • During pregnancy - the threat of miscarriage, frozen pregnancy, more than 19 weeks.
  • Before the delay - menstruation should come soon, there is no pregnancy.

Temperature 37.0

This temperature before the delay may indicate fast onset of menstruation(depending on when you took the measurement), mild inflammation.

If the temperature started to rise slightly, the embryo attachment took place quite recently. During pregnancy, it indicates a lack of progesterone and a threat of miscarriage.

Temperature 37.1

Before the delay, there is a high probability that there was conception. It should rise a little during the week. If the temperature has dropped - the imminent arrival of menstruation, spontaneous abortion. If pregnancy is confirmed - the norm, a slight lack of progesterone is possible.

Early pregnancy graph by week

After the 18th week of pregnancy, the temperature decreases, and its indicators are within 36.9 - 36.6 degrees.

Now you know what to look for when measuring and plotting. Advice - if you notice, already being pregnant, sharp drop in temperature or its jump - see your doctor as soon as possible to avoid the threat of interruption.