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From what period of pregnancy test shows a reliable result? From what period of pregnancy test shows the exact result

Prior to the invention of pregnancy tests, humanity resorted to various methods of guessing the occurrence of the gestation period. A peculiar pregnancy tests were carried out using wetting of the female urine grain, urine mixing with wine, changes in the characteristics of the biological fluid under the influence of various additives, as well as injection of its definite frogs. So, it was believed that when pregnant, the grain of wheat or barley, polished by urine, germinate faster, which helped not only diagnose the successful conception, but also to predict the sex of the child. The repeat of such a test in the 70s of the 20th century showed 70% efficiency of the method of determining pregnancy.

A modern pregnancy test allows a high probability to determine the beginning of the birth of a new life without long experiments with various compositions and grains. The diversity of tests for express diagnostics, however, implies the need to know when a pregnancy test needs to be done, how to interpret the result and what tests it is better to use.

Despite the modernization of diagnostic methods, the test material remains the same as in the Middle Ages. Watering contains chorionic human gonadotropin, the same hormone, the concentration of which is estimated in the diagnosis of pregnancy on blood test.

In the venous blood, the hCG hormone begins to be determined 2-3 days after the start of the introduction of the chorion vault to the walls of the uterus. Sufficient concentrations for most tests in the urine secreted, chorionic gonadotropin reaches approximately a week after the start of the process of its development in the body.

If there is sufficient in the urine, a chemical preparation is reacted on the surface of the test and hormone for the sensitivity level of the HCG concentration test. In the absence of a hormone or its insufficient concentration, the reaction does not occur, and the result turns out to be negative.

The average sensitivity of tests present on the market - 25 MUI, such an indicator of HCG reaches, as a rule, two weeks after fertilization. Existing tests with higher sensitivity reacting to fewer hormone diagnose its appearance 3-4 days earlier.

When can you use a test with a regular menstruation cycle?

If the menstrual cycle is distinguished by the regularity and constant number of days between the beginning of the bleeding, then calculate the term of ovulation is easy. The middle of the cycle (with a standard menstruation cycle of 28 days - on the 14th day) an egg generation occurs.
Egg fertilization is possible for three days, its life cycle. After the process of fusion of the egg and sperm 4-5 days, germinal cells migrate in the uterus in place of placentage, after which the HCG generation begins. In order to assume fertilization within 2 days, 4 days of migration and necessary to achieve the desired level of concentration in the urine of the time hormone, highly sensitive tests are able to show the offensive of pregnancy 10 days after ovulation, that is, with an average cycle of 28 days - by 24 day of the cycle . For greater confidence, experts recommend using a highly sensitive test for 12 days after the exit of an egg from the ovary, tests of ordinary sensitivity - after 15-16 days.

Diagnosis of pregnancy with an irregular cycle

If the menstrual cycle does not differ in regularity, the duration of periods between menstruation varies, the time of using the test depends on the duty of ovulation.
It is possible to determine ovulation by subjective sensations (some women feel the characteristic tingling in the area of \u200b\u200bone of the ovaries, the feeling of cutting, swelling, changes the sensitivity, mood), as well as the method of measuring the rectal temperature and using a ovulation test. When determining the occurrence of ovulation and possible fertilization, a pregnancy test is used 15 days after the date set.

Morning evening wisely: when it is better to do the test

Most of the modern test strips do not limit the diagnostic period by any time of the day: they can be used in the morning, day, at night. However, specialists, given the possibility of a natural reduction in the concentration of hCG after using a large amount of fluid, are recommended to resort to diagnostics in the morning using the first portion of urine after night sleep, especially with a small probable period of pregnancy.

During the day, the hormone concentration is reduced during the day when the fluid is admitted to the body. For the timing of more than 18 days after ovulation, this factor does not have a decisive value, but the ovulation periods also do not always coincide with the alleged. For accurate indicators, it is better to follow the recommendations of specialists, and in a situation where the test must be spent during the day or evening, then the optimal will be diagnosed after four hours of abstinence from visiting the toilet and the limited use of liquid products to maintain the level of CGC concentration.

Rules for using express tests

  • It is necessary to follow the rules for storing tests provided by the manufacturer.
  • Using the test in damaged packaging can distort the results of the diagnosis.
  • Packaging is opened immediately before diagnosing.
  • The use of an expired test leads to incorrect results.
  • The optimal time of the test is morning, immediately after night sleep.
  • If the test is not an inkjet - the urine set requires the use of a clean container.
  • Recommended before testing to carry out hygienic procedures with a wicker of external genital organs.
  • Strictly follow the instructions instructions for use.

Pregnancy Test: Instructions for use

There are various types of express tests. Instructions for each type are attached to the test, violation of the rules of use most often entails the emergence of incorrect indicators.

When diagnosing pregnancy, the test is used in the deadlines specified by the manufacturer. If testing is recommended from the first days of delay, that is, the probability that the sensitivity of the reagent or individual characteristics, the conception time will reveal the pregnancy earlier than the specified period, but most often the accurate result is possible only on the specified days of the cycle.

The test cost is most often directly correlated with its accuracy: the lower the price, the lower the cost of production and cheaper the chemical reagent, respectively, above the number of incorrect results. In the market today the tests of four modifications are most common, each species has its own characteristics and instructions for use. Some manufacturers produce various types of tests under a single brand (Evitest or Eviest, Frautest, etc.), when you purchase, you need to pay attention to the variety.

Test Strip or Strip Test

Strip test (Stripe Test, Strip Test) is one of the first pregnancy diagnostics options, a test for self-use and quick interpretation of the results. The most common and cheap option (for example, ITest Plus is offered at a price of 20 rubles).
Paper-plastic strip with an additional inner layer, impregnated with reagents, during contact with urine is painted in one or two places. One strip confirms the effectiveness of the test, two indicate the presence of a hormone concentration of the chorionic gonadotropin of a person to confirm pregnancy.

Terms of use: Collect the first morning urine in a clean capacity, omit the test to the boundary designated on the strip, hold the required time in the liquid (most often 20-30 seconds), remove and put on a dry horizontal surface.

Diagnostic results are manifested for a period of from 1 to 10 minutes, depending on the concentration of the hormone. Some tests can also change the degree of painting of the control strip - the larger the color, the smaller the term of pregnancy.

Tests of tablet type

Tablet tests are based on the same principle of operation as strip tests: when contacting the urine of a certain part of the surface, a chemical reaction of the reagent and hormone hgch occurs. For a lower probability of error, the volume of the liquid is dosed, and the contact location is limited by a special window.
According to the instructions, it is necessary to collect urine into the attached clean capacity, then with a pipette from the kit to dose 4 drops into a small test tablet window. The results are estimated in the following window: Depending on the variety, one or two strips or minus and plus appear.

Inkjet tests

This specification is considered one of the most accurate and sensitive, and also does not require additional devices and manipulations. The test strip is placed under urine stream for 10 seconds (if necessary, you can use the container and immerse the test in the urine).
The results are subject to evaluation through an interval from 1 to 10 minutes, depending on the concentration of the hormone. In contrast to the above options, inkjet tests can be used 5 days before the expected date of the menstruation.

Digital Pregnancy Test

Electronic modification of ordinary options. The test estimates the concentration of hong hong and requires immersion in the urine, but the result (depending on the type variation) is displayed either on the electronic mini-board, or appears on the computer screen, to which the test is connected via the USB port.
This option is considered the most optimal due to the impossibility of distorting the interpretation of the results. However, the sensitivity of digital tests is the same as in the jet: it is possible to use them 3-4 days before the intended date of menstruation. When testing 2 days before the start of menstruation, accuracy of 99% is guaranteed.

Negative test result with developing pregnancy

In most cases, tests show a negative result in pregnant women with too early use of tests with low sensitivity, non-compliance with the instructions for use or storage. A negative result is possible and due to late ovulation and late conception - in such cases, the hormonal background varies slower than expected in accordance with the menstrual cycle.

Diseases of the endocrine system, violations of the hormonal background also lead to the emergence of negative results when test diagnostics. For the threat of miscarriage, an inconsistent gestation is characteristic of the increase in the level of HCG hormone level, which, accordingly, leads to one strip on the test in terms of time when the concentration of hCG should be sufficient for two.

It is worthwhile that during the tooling use tests only in the first trimester. The concentration of HCG is not preserved during the waiting period of the child, which leads to incidents: if tests for a period of more than 2-3 months, the result will be negative.

False positive results

Positive test results for non-remote women are far less frequently inverse and in most cases indicate the presence of diseases (ovarian dysfunction, the formation of tumor education in reproductive organs generating hormones, etc.). False-positive diagnostic results are also noted in the first two months of the postpartum period and when applying the test with an expired storage period.

Testing during menstruation

In some women, pregnancy is accompanied by menstrual-like secretions similar to abundance, deadlines and manifestations with conventional menstruation. As a rule, the selection ends in the first trimester, however, there are cases of their manifestations throughout the period of gestation. In such situations, it is recommended to resort to the diagnosis of blood test, but the use of tests is also possible.
Any test is based on the assessment of the hormone concentration in the urine and the menstrual discharge into it does not affect the effectiveness of tests.

If the test results cause doubts

Sometimes it is not easy to interpret the results of express diagnostics: the second strip-indicator is slightly outlined, shines from the inside of the test. Sometimes it happens because of low-quality production in cheap paper strips: during wetting, the reagent becomes somewhat more noticeable than in dry form.
Visible, but the pale second strip most often indicates a low level of hCG, insufficient test sensitivity. In this case, the check is better to postpone 1-2 days or take advantage of a higherly sensitive option.

A strip with an insufficient degree of paint can also appear as a result of improper storage of the test, violation of the instruction. In any case, re-testing and / or blood test on HCG is recommended.

Ectopic or undivided pregnancy

The test results for ectopic and / or undeveloped pregnancy are also positive: on the days of the alleged menstruation, the presence of a second strip on the test is most often noted. But the growth of the level of hormone is not occurring at such states, on re-testing the strip-indicator of pregnancy can be pale or not to appear, which requires an immediate appeal to the doctor.

Waiting for a happy day, when you become a mom, can cause a huge spectrum of feeling: from a thriftless excitement, before anxiety. To quickly find outIt happened to conceive, it will be useful to deal with the question when you can do a pregnancy test. Thanks to modern technologies in the field of medicine, no longer need to wait for many months and sit in line at the reception to the gynecologist to get news on the upcoming replenishment in the family.

Pharmacy options for this kind measure the number of blood hormonesMost of the early detection techniques are aimed at indicating the number of chorionic gonadotropin. Abbreviated doctors often call it Hgch.This abbreviation is familiar to many patients. Its level may vary 10 days after fertilization. If a woman has an average cycle is 28 days, then it will be able to confirm the birth of a new life with the help of the test it can be 5 days before menstruation. That is, even before it becomes clear whether there is a delay. As a rule, they show pregnancyWhen it is still impossible to see when examined on the ultrasound apparatus.

In general, it is worth considering that from the moment of ovulation until the next menstruation under the cycle in the 28th day passes 14 days. So every woman independently can calculate, from what day before the onset of regular bleeding, it is able to recognize that the transition to a new state, waiting for the appearance of the heir, occurred.

Easily increase the accuracy of the check if you perform a number of simple actions:

  • conduct a survey in the morning, before eating and to the campaign to the toilet;
  • check the sample after 5 minutes or through the amount of time specified in the instructions, not earlier and no later;
  • 3 hours before the sample you can not take diuretics.


The first samples for the presence of an interesting position can be made on the ninth day After the contact with a man occurred, not protected or directed to targeted fertilization. By this time, the fertilized egg was already introduced into the uterus, and Chorion, which forms a placenta, begins to allocate hong hong. Its presence in blood and urine is considered the main sign of an interesting position.

When checking in the earliest periods, it is necessary to be especially carefully comply with instructions for use Products. It is impossible to overeat him in the urine, as well as removed too quickly. During this period, the concentration of hCG in the body is small, important use the most sensitive samples. The second strip on them may be quite weak pronounced. The longer the time passes with the time of conception, the greater the second strip will be bright. And the easier it will be to discover the fact that the motherhood took place using different brands, including not the most sensitive products.

Up to 6 days after the birth of a new life, this fact is not able to identify any way. At this time, the embryo not yet attached to the uterusis in free movement. Only after the introduction of it in the endometrium, you can find out if it is. And this happens at 21, 22 or 23 days after the last menstruation. Fertilized egg cell is not implanted in the uterus up to 6 days. But the merger of it with sperm cells is possible not immediately after ovulation, but for a couple of days. From here and take such approximate dates when you can do a pregnancy test in order to understand whether the child's birth occurred. And worth Lie prepare for the long-awaited appearance of the baby to the light.

After ten days, the most sensitive and expensive brands can already show two cherished stripes. If there is a huge impatience, and they show the second strip barely noticeably, you can give blood for analysis Concentration of chorionic gonadotropin. This will have to implement a doctor, but the data will be even more accurate.

However, if you can wait and there is no sharp desire to urgently learn whether the long-awaited miracle occurred, wait for the fourteenth day from the moment of ovulation. Experts believe that on this period all the tests have the opportunity to identify the presence of the fetus without errors.

If the check is carried out in the shortest period after conception, it is especially important to comply with the following conditions:

  • thoroughly study the instructions on the package, follow it uncorrectly;
  • do not take any drugs on the eve of the procedure, if it is impossible, transfer it;
  • when consulting a gynecologist, pay attention to whether there is no disease that can lead to false positive or negative samples.


The exact parameters of pharmacy strips should be studied in the instructions that are attached to them. Usually 10 days after the release of ripened female genital cell, the most sensitive analogs are already shown whether conception. Their accuracy is 99%. Cheaper and less sensitive products can identify the interesting position of the woman in the earliest period only with a probability of 80-90%.

Manufacturers recommend wait for the first days of delay menstrual secretions and only after that something to measure.

External factors can affect results. Among them, you can list several basic:

  • hormonal drugs can change the number of hCG in the blood, if they were taken before conception, the data may be inaccurate;
  • some drugs from infertility lead to false positive samples;
  • previously interrupted pregnancy, if she happened recently, can distort the sample.

The possibility of means from the pharmacy to determine the presence of an interesting position before delaying non-DIA. Important explore the manufacturer's instructionsIn order not to make a mistake. It is also worth preferred to the most sensitive options that measure the slightest concentrations of hCG in the urine. As a rule, they are not cheap, but they can be 5 days before the intended menstruation to indicate that fertilization occurred.

The number of days before the delay, during which it is possible to understand when you can do a pregnancy test and identify the presence of an embryo, you need to count on dependence on the middle cycle of women. So, those who have a cycle of standard 28 days, most early definition of conception May take place in 5 days. And if the menstrual cycle is 24 days - then only 1 before the delay.

The above has already listed the factors that can distort the picture. If they are and you have, it is necessary to progress, spend the samples several times for a number of days. Desirable use products of different manufacturers and with different sensitivity. And sometimes still have to go to the doctor to make sure it is time to prepare for the birth of a baby.

Sometimes during an interesting position menstruation does not stopAlthough they become less pronounced. So if the check gave a negative result, it can sometimes be caused for anxiety. For example, it happens when it is applied test species With weak sensitivity to the concentration of hgch hormone at extremely early time.

The degree of sensitivity of the product is indicated on the package. What he is more accurate, as a rule, it is more expensive. The smaller the number, the more sensitive is the test. For example, if there are two goods on the storefront - by 20 and 25 units, then you should choose the first. It is more suitable for early periods, because it has a higher sensitivity to the concentration of chorionic gonadotropin in the urine. The most sensitive brands on the market help to fix the concentration of hCG to 10 honey / ml.

The earlier stage of pregnancy, the more important at what point in the day to carry out the procedure. At large times, the hormone content in the urine is high, so the check can be done without looking at the clock. And if you do not tolerate as early as possible to learn about an interesting position, it is better to diagnose in the morning after sleep. It is important to make this procedure it before visiting the toilet. Since at this time The hormone level is the highest For the time of day.

If a follow all listed recommendations, use a sample of the desired sensitivity, not violate instructions for use, then the appearance of a new life in the early stages you can recognize unmistakable. And if the time tolerates and acute impatience is not, then you can wait 14 days from the moment of ovulation to save on the purchase. At this time, most varieties, even inexpensive, are no longer mistaken. So it will be possible to get a reliable answer to the spicy question without excessive costs.

Do you now understand when you can do a pregnancy test? The forum will tell. Read more about numerous cases.

Hands tremble, in the head fog, inside the incomprehensible mixing of emotions, and the cause of everything is a positive pregnancy test. Some women rejoice in him, like a miracle, others begin to panic, the others are at all fall into a stupor. But after all after a few minutes / hours / days, the same question arises - what's next?

1. Calm down

It is better not to neglect this advice. Very often, women who want or, on the contrary, are afraid to become pregnant "I think" the second strip. With any scenario, take yourself in hand will be an excellent solution.

You can not try to distract something else - it will not work. Instead, a deep calm breath or a conversation with a spouse / girlfriend will help.

2. Reboot the result

As soon as the ability to clearly think returns, it is advisable to start rechecked. To do this, it is better to buy 2-3 tests, but another brand and type. Ideally - in another pharmacy. Read the instructions for them - the need. Tests can show false-positive results due to improper use, storage or expired.

The false positive result arises in such cases:

  • recent abortion, miscarriage;
  • ectopic pregnancy;
  • hitting the test of organic particles from outside;
  • treatment with hormonal preparations;
  • menopause;
  • oncology;
  • some types of cysts, uterine myoma and similar diseases.

You can repeat the procedure after 2-3 days, if there are doubts. In the presence of pregnancy, the strips will become brighter after this period. If the tests still show the pregnancy, it's time to move to the third step.

3. Chat with mom

And not only for moral support and division of joy. A conversation with my mother is needed to find out how her pregnancy and childbirth passed. This information will subsequently help the doctor better understand how to keep a pregnancy of the future mother. Several questions that preferably ask their parents:

  • What weight and growth I was born?
  • Have there been complications during pregnancy or childbirth?
  • Did you suffer from increased pressure during pregnancy?
  • What kind of children's diseases I got sick (rubella, windmill, etc.)?

It also makes sense to recall all its chronic or serious diseases in the past, the presence of allergies. Perhaps mom will be able to help with it.

4. Make an appointment to the doctor

Pretty and obvious step. However, as practice shows, many women postpone the visit to the doctor or not at all consider it necessary to go to the clinic. And in vain. The sooner the future mother is recorded at the reception, the more chances of the doctor to warn the development of pathologies from the fetus or complications during pregnancy.

If the test showed two strips not because of pregnancy or marriage, the doctor will establish the cause and prescribe the appropriate treatment.

What can the doctor do already during the first visits?

4.1. Send to laboratory test on hCG

If the term is still small, even gynecological examination may not reveal pregnancy. But with this, the test for gonadotropin will perfectly cope. Its much more in the blood than in the urine. If the pharmacy test showed the wrong result, the laboratory will reveal it.

4.2. To diagnose

The doctor can send for several blood tests, urine, thyroid examination. He will surely recommend to undergo a general inspection of the therapist, an oculist, a otolaryngologist and several more specialists.

To take tests during pregnancy will have often, almost before each visit to the gynecologist. However, it is better not to miss them, as they are really important to maintain healthy pregnancy. All procedures are directed not only to track the condition of the child, but also to care for the self-being of the mother.

Low hemoglobin, weak immunity, too strong hormonal jumps and discomfort as a whole - for all this gynecologist can write vitamins. They will improve women's health and even make it more attractive.

4.4. Appoint ultrasound

The first ultrasound will be appointed no earlier than 2 weeks after the start of the delay. His main goal is to eliminate ectopic pregnancy. It will also be able to identify problems with the genitals, if any.

Ultrasound for determining the sex of the child, the features of its development will be appointed much later.

4.5. Match the schedule of visits

Doctor will have to see hardly more often than her husband. If the pregnancy passes without complications, the frequency of visits is most likely to equate to one hike per month, but not less often. Closer to the date of childbirth, a woman will have to visit the gynecologist more often.

So that I didn't have to cancel the plans and in a rush to gather to the doctor, it is advisable to immediately discuss the approximate schedule of visits to the doctor.

5. stock information

Books, reliable Internet sources, courses for pregnant women - all this will be useful. A woman who knows how her body and a child change during tooling, feels more confident. And confidence and calm facilitate childbirth.

What is exactly better not to do, so it is to listen to adherents of traditional medicine with dubious, and often and dangerous advice. These 9 months are not the best period for experiments.

6. Enjoy pregnancy

Almost every pregnancy is accompanied by discomfort. It is natural and quite tolerant. However, it is still better to try to secure the most cozy atmosphere.

Communication with pleasant people, visiting beautiful places, positive emotions well affect the nervous system of the kid and his health in general. Yes, and mom from this only benefit.

And yet there is "but". Pregnancy - not the best time for cardinal change. Therefore, if a young mother:

  • smoke, she can not throw this habit sharp. It is better gradually reduce the number of cigarettes and then smoothly from them to refuse;
  • lives by shot down schedule, she will have to try slow It is restored. It makes sense to ask for the future dad;
    • It is recommended to exclude power and intensive workouts. You can replace them with simple walks or yoga for pregnant women;
  • loves fast foodIt is desirable to reduce its quantity. The woman can greatly change the tastes, which often provokes a craving for harmful food. It is not necessary to completely deny yourself the pleasure, but seriously limit the amount of such food is a necessity. It is important to ensure that the basic diet consistent predominantly From useful dishes.
  • active personthat will not grow in place, she can leave their former lifestyle. But she will definitely have to follow its schedule of day and nutrition, eliminate negative and overwork.

A positive pregnancy test can be as a result of the marriage of the product and the foreman of motherhood. Regardless of this, it is better to rebuild and still visit the doctor's office. Such a step will help protect health - your and baby.

At certain moments of life, each woman has suspicions that this month instead of another menstruation can expect completely different news. Some perceive this opportunity with the joy and mass of positive emotions, others are upset and with hope and experiences are waiting for the refutation of their suspicions. But in any case, the woman always wants to find out as quickly as possible, whether the new life originated inside her.

Modern medicine offers to eliminate such issues a lot of opportunities, the most common among which are special tests.

But not every woman knows what day the test shows pregnancy, and often trying to conduct a study after a few days after unprotected sexual intercourse, soothing the negative test results and surprised by the menstruation delay.

Principle of action of pregnancy tests

The basis of any test is simple indicators that make it easy to learn about their possible interesting position at home. That at what day of pregnancy the test shows the correct result depends on the test itself, its features, manufacturer and quality companies. The effectiveness of tests in the initial timing is from 97 to 99%, therefore, if the defining device is not defective, the result of the study will be reliable in most cases. However, it is recommended to purchase 2-3 different tests, to confirm the results obtained, especially in the earliest and apply them, strictly following the instructions.

To know exactly how to apply a pregnancy test to get the most reliable result, it is necessary to find out what it determines. The easiest pregnancy test is a small thin strip of the canton, in a certain place of which a special reagent is applied. When immersing the strips in the urine, the reagent wet and changes the color, while the second line on the test appears when the urine has an increased level of pregnancy hormone, called chorionic gonadotropin, the production of which in the body of a woman begins immediately as soon as conception, rising every day up to a certain period.

Accuracy of pregnancy tests depending on their species

Many women worries not only what a test shows a test, but also the most effective and accurate and accurate, because in pharmacies there is an extensive selection of such devices from the simplest to professional laboratory.

Test Strip or Strip Test

This species is probably the most popular and most simple, as the most cheapest but not having a high degree of sensitivity. The strip is required to omit in a container with urine for about 10 seconds, after which it is left on a flat surface for 5 minutes for a more accurate manifestation of the result. Two lines on the reagent strip will indicate pregnancy, one line suggests that the study itself is carried out correctly, but the conception has not occurred or the level of pregnancy hormone below the necessary concentration.

Despite the high popularity of these strips, they have a lot of deficiencies, for example, they can be reappeared in the assembled urine or remove from there before the required time, then the results obtained may turn out to be unreliable. In addition, the reagent in such strips is most often applied to the paper layer (sometimes tissue), which can not correctly determine the level of hormone slightly.

Apply such a test makes sense only in the first or second day of menstruation delay, since for the study, the HCG level should be not lower than 25 MME / ml. On this period, the accuracy of the strip will be about 90%. Upon delay in one week, the percentage of the efficiency of pregnancy raises to 95-99%.

Test tablet type

The device has a sufficiently high cost in comparison with the rest of the species, but also a more advanced device for determining pregnancy. This type of tests are usually used in many hospitals for professional analyzes. Its action is also based on the use of a reagent interacting with the urine of a woman, but it has high sensitivity.

On the test device there are two windows, first with the supplied pipette you need to drop urine, after which you expect the result in the second window. The level of pregnancy hormone for testing the device should be not lower than 10 MME / ml, so the test is able to establish pregnancy at the most initial timing, sometimes even 1-2 days before the monthly delay.

Inkjet tests

A feature of such a device is that to use them, it is not necessary to specifically collect urine into the container, it is enough to perseve on the receiving part of the device, which allows you to conduct a study anywhere, even at work, just visiting the toilet. The result of the study is displayed within 1 minute. The sensitivity of such tests is very high, it is enough to determine the pregnancy of the hormone concentration above 10 MME / ml, so it can be a significant result of such devices in a few days before the intended delay.

Electronic Digital Test

It is the most expensive device from all presented in the modern market, but also most understandable because it shows the exact and unambiguous result. The principle of its action is similar to other models, but accuracy is as high as possible and can have a different percentage, depending on the day of pregnancy. When using such a test for about 4 days before the intended delay, its accuracy will be about 51%. If applying 3 days before the start of menstruation, the accuracy increases to 82%, and in 2 days to 90%. The day before the next menstruation, accuracy will be 95%, and on the first day of delay, the test information will be 99-100%.

There are also several other tests that allow you to determine the pregnancy at the initial stage before the intended delay of menstruation, they are called immunochromatographic. Their action is based on the general principle, but the sensitivity of determining the pregnancy is higher. Such tests in most cases allow you to establish pregnancy already when the hormone level in the urine is 10 MME / ml, that is, from 7 days after fertilization of the egg.

Types of such tests:

  • Test strips. The most budget version of the study showing a fairly reliable result, but when choosing such a test, you should pay attention to its sensitivity, which can range from 10 to 30 mm / ml, the smaller this indicator on the test packaging, the earlier it can confirm or refute pregnancy.
  • Inkjet tests. You can use such a test anywhere and at any time of the day, using 7-10 days after the expected fertilization, since their sensitivity is determined by the hormone concentration in the urine in 20 MME / ml. If you use such a device correctly and at a time limit, then its accuracy is 99%.
  • Tablet cassette test. Of all devices capable of determining the pregnancy, before the delay in the monthly, this species is considered the most reliable. Its sensitivity is 10 MME / ml, which, with proper use, allows you to identify pregnancy from 7 days after the alleged fertilization.

What day after sexual intercourse the test can show pregnancy

Of course, any woman needs to know what a period of pregnancy test shows the most reliable information. It is important to understand that the hormone level of HCG does not increase instantly, this happens gradually, and in the earliest time in the blood of its concentration will be much higher than in the urine of a woman. Pregnancy tests are capable of determining its presence only when the hormone level reaches the indicator, according to their sensitivity, which has different models.

As a rule, conventional test strips are able to show a reliable result only on the first day of menstruation delay, on average it is 11-15 days after ovulation. The higher the test sensitivity, the earlier it can be found about possible pregnancy. When using highly sensitive tests (from 10 MME / ml), you can learn about your position for 5 days before the alleged delay.

It is also necessary to take into account the accuracy of the result, which in some cases can be false negative.

The false positive result of the tests is quite frequent at a certain category of women, for which the pregnancy becomes an obsession and the most cherished dream. They begin to look for any signs of pregnancy, even in the most minor things, constantly staying in an excited nervous state, because of which menstruation delays often arise, which generate practically 100% confidence in them. At the same time, even in the usual state in the urine, a small amount of hCG may appear, able to paint the test indicator into a very pale color, perceived by women as a confirmation of pregnancy, which is in fact not. Such a phenomenon in modern medicine is called false pregnancy.

The false negative result is also quite a bad phenomenon. It can be observed when in fact the pregnancy occurred, but the test strips do not show this. This happens for a number of reasons, for example:

  • The test was applied on a too small gestation, when the level of the required hormone is still insufficient to accurately determine the state.
  • There is a threat to interrupt pregnancy immediately after conception.
  • The test is spoiled, applied incorrectly or has very poor quality.
  • A woman has a violation of the kidney or a cardiovascular system, which is why pregnancy hormone is not produced in the required quantity.
  • If the pregnancy is intrauterine or frozen.
  • If the study was conducted without complying with the instruction in violation of the process.
  • For analysis used diluted urine, not sterile packaging.
  • The test was carried out after the use of diuretic drugs or in the wrong time (day or late at night).

With normal pregnancy development, almost all types of tests determine its presence reliably, if there were no violations of the instruction in the process of using them. And the false-negative results of such studies are much less common than false-positive. If the woman is exactly sure of the occurrence of pregnancy, and the test did not confirm this, the study should be repeated in a few days, when the concentration of the required hormone increases in the urine. If several tests show pregnancy, a woman should contact a medical center for medical confirmation and registering that the kid be born healthy.

What time to do a pregnancy test?

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What period of pregnancy shows a test and ultrasound? These issues are very relevant for both women who are planning a child and their opposites. Why exactly ultrasound and tests? The fact is that these methods are the most popular, common, accurate and affordable. Of course, it is possible to pass the blood for the maintenance of HCG and learn about whether there was conception or not 10 days after sexual intercourse, but, unfortunately, it is still not in every laboratory this analysis, especially in small cities and in rural terrain. But the test can be bought on any pharmacy, and in the rural clinic, there will certainly be an ultrasonic diagnostic office. Let us consider in more detail the question when you can definitely use the first and second method of diagnosis, in order to avoid annoying, and sometimes dangerous errors.

So, on what time a pregnancy test can "be sacrificing"? Many people know that this is the first day of menstruation delay. This information is contained on the packaging of any test. However, many women try to conduct such home diagnostics of the previously recommended period and sometimes even get a reliable result. And then how reliable will result, depends on 4 factors:

1. The term of pregnancy (the more, the less time there are errors);

2. Quality of test (there are certain firms whose products often cause dissatisfaction of women);

4. Exact compliance with the instructions.

The most accurate is the tests with sensitivity 10. However, they will not show the correct result immediately after sexual intercourse and in the first few days after it too. The fact is that a fertilized egg takes time to achieve the final "destination" - uterus (with normal uterine pregnancy), it usually takes 5-7 days. And only after that it begins to produce HCG - a hormone, which indicates the emergence of a new life. It becomes clear what period of pregnancy shows a test - this is at least 10-14 days. With all this, the second strip on the test in the early period is weaker than painted, it is also the norm. If the test showed a positive result, this is almost 100% means an implantation of an egg and the development of a fetal egg. But the negative result is often erroneous. This is especially true of women with an irregular menstrual cycle, which are difficult to calculate the day of ovulation - the probable day of conception.

It concerns tests. But many women consider more reliable ultrasound research. What period of pregnancy shows ultrasound when it makes sense to undergo this survey? A fruit egg can be seen on the monitor pretty early, already on the third week of pregnancy, when HCG exceeds 1800 units. If with such a level of chorionic gonadotropin and at such a period of the fetal egg in the uterine cavity, it is almost 100% an ectopic pregnancy.

However, ultrasound is rarely used to diagnose pregnancy, since there are other methods, more affordable and inexpensive. On the ultrasound of women are usually sent with suspected lack of development of embryo and ectopic. In the first case, there will be no embryo in the fruit egg, or the embryo will be, but it will not be recorded heart abbreviations (the behalf of the embryo begins at 4.5 weeks).

These two ways (tests and ultrasound) are used most often when determining pregnancy. At the symptoms and signs (even the delay of menstruation) should not be too much.