An exciting question: when is it better to do a pregnancy test

When is it better to do a pregnancy test? This question is of interest to the vast majority of women after sex without contraceptives. Someone counts the days in the hope of the cherished two strips, and someone with horror awaits the result. But in any case, there is no limit to impatience, and until the onset of menstruation is so long! Is it possible to know about pregnancy before the expected day of menstruation?

To know when it is better to do a pregnancy test, it is worth starting to understand how it works. For each test, a chemical reagent is applied, which changes when the hormone gonadotropin (hCG) hits it. That is, when a reaction occurs, a second strip appears. If there is still only one visible, then there is no reaction, which means that the hormone in the urine of the woman did not appear.

HCG is present in the body of a non-pregnant woman in very small doses - no more than 5 units in a milliliter of blood (in urine and even less). Once the egg is impregnated, the gonadotropin begins to be produced at a very rapid rate. So, a week after the onset of pregnancy, when the future little man attaches to the walls of the uterus, its concentration reaches 10-15 U / ml. The most sensitive tests can already react to the presence of pregnancy. If you wait two weeks after the alleged fertilization, any test will react to hCG. Usually by this time there is already a delay. Therefore, if there is no desire to wait for the onset or non-occurrence of menstruation, you can get a test with a sensitivity of only 10 U / ml after about a week, and after a few days - 25 U / ml. If both tests show a positive result, it's time to go to the gynecologist.

The question of when to do a pregnancy test, includes also the time of day. At first, the most accurate results are obtained immediately after awakening. In the morning portion of urine, the concentration of hCG is highest, and during the day it may drop.

No less important for women and the accuracy of the pregnancy test. Can he make a mistake? As a rule, the tests are reliable, but the possibility of an error can not be excluded. Thus, a false negative result is possible in the early stages, when hCG has not yet reached the desired concentration. Especially since the physiological characteristics of the organism are different for all. If there is any suspicion of pregnancy, it is worth taking an analysis in a few days. A positive result in the absence of pregnancy can be found if several months before this was an abortion or if a woman takes hormonal drugs containing hCG. This may also indicate the presence of tumors.

In general, our body is our best counselor. When it is better to do the test, the early symptoms of pregnancy will prompt. In addition to the delay in menstruation, there are many signs that a woman can understand that she has to become a mother. These include morning sickness, the appearance of unusual taste predilections, increased drowsiness, fatigue. Almost immediately , the chest swells, colostrum can be allocated. When these signs appear, basal temperature can be measured over several days. If time moves to the beginning of menstruation, and it keeps at a level above 37 degrees, then it already makes sense to purchase a pregnancy test.

Thus, it is perfectly clear when it is better to do a pregnancy test.