It is possible to diagnose pregnancy even before menstruation is delayed using a blood test for hCG. He can show a positive result within a few days after the embryo is implanted into the uterine wall.
Diagnosing pregnancy with a test
A pregnancy test is the simplest and most affordable method for early diagnosis. The test strips are impregnated with a special indicator that reacts with human chorionic gonadotropin, causing them to change color. This hormone is produced in a woman's body only during pregnancy and is quickly determined in biological fluids.
This rapid analysis can be carried out approximately 2 weeks after conception. As a rule, ovulation occurs in the middle of the cycle and menstruation should occur 12-16 days after the release of a mature egg from the ovary. Conception is most likely during ovulation, so it makes sense to buy a test only after a delay in menstruation. If you do the analysis earlier, there is a high probability of getting a false positive result.
The concentration of chorionic gonadotropin in the blood increases several times every 2-3 days. If the test is negative, but the woman continues to doubt the absence of pregnancy, she can perform the analysis again after 3-4 days.
Determination of pregnancy by blood test for hCG
A blood test for chorionic gonadotropin allows you to diagnose pregnancy even earlier. It is known that the concentration of a specific hormone in the blood begins to increase much faster than in urine. It begins to rise immediately after the embryo is implanted into the wall of the uterus. After 2-3 days, a blood test for hCG may show a positive result. Thus, it is possible to determine the presence of pregnancy by this method within 5-7 days after conception.
A blood test for hCG can be taken in an antenatal clinic or a specialized laboratory. In the absence of a referral from a doctor, it is paid. Experts believe that it should be done not to satisfy one's own curiosity, but only in certain cases when it is really necessary.
An increase in the concentration of chorionic gonadotropin may not be associated with pregnancy. Such cases are very rare. As a rule, one has to deal with this when serious pathologies begin to develop in a woman's body.
Signs of a pregnancy that has come include nausea, weakness, feeling unwell, an increase in the sensitivity of the mammary glands. As a rule, a woman begins to feel them even before the delay in menstruation. With the help of these signs, it is impossible to diagnose pregnancy, but their appearance can be a reason to buy a test or take a blood test.
