How many days after having sex on the 25th can I test positive for pregnancy

Nowadays, many young couples want to have children when they reach a certain age. But this is a matter of high probability, and you can't get a child just by having one. Therefore, you need to increase the number of days you have sex to increase the probability of pregnancy. So generally speaking, how long does it take for sexual intercourse to lead to pregnancy? Let me share it with you today.

1. How long after sex can I take a pregnancy test?

You can take a pregnancy test 8-11 days after having sex. The hCG value can be measured by blood test 8-11 days after conception. Blood hCG appears earlier than urine hCG, and blood hCG test is much more accurate.

The working principle of using early pregnancy test strips to detect early pregnancy is to detect the hCG value, that is, the value of human chorionic gonadotropin. This hormone is produced by the placenta and usually appears in the urine a few days after pregnancy. However, due to the small amount, it is difficult to test it at the beginning and it only becomes increasingly obvious after 10-14 days.

It should be noted that although many pregnancy test tools indicate that women can do self-tests for pregnancy one day after missing their normal menstrual period, in fact, not all pregnant women release hCG hormones at the same speed and in the same amount. This varies from person to person. If a urine test is done too early, a negative result may be false.

2. How long does it take for the pregnancy test strip to be used for pregnancy testing?

The working principle of self-testing pregnancy using early pregnancy test strips is to detect the hCG value, that is, the value of human chorionic gonadotropin. This hormone is produced by the placenta and begins to be secreted 10-14 days after conception. After secretion, it first appears in the blood and then appears in the urine through the circulatory system. However, due to the small amount, it is difficult to test it at the beginning. It does not become increasingly obvious until 1-2.5 weeks of pregnancy. Neither too early nor too late will have good results.

Choose morning urine for self-testing at least 10 days after having sex, as the concentration of hCG in morning urine is higher. It takes several days for sperm and egg to combine into a fertilized egg, implant into the uterus, and form an embryo. hCG will only appear in the blood a few days after pregnancy, and because of the small amount, it may not be detected at the beginning.

Generally speaking, you can use an early pregnancy test strip 7 days after your menstrual cycle is delayed, 10 to 14 days after having sex, or as early as 33 days after your period stops. If the early pregnancy test does not show whether you are pregnant, you can do another test about 37 days after your menstrual period ends.

From the introduction in this article, you can know that a woman can determine whether she is pregnant through a blood test about 8-11 days after having sex, if you want to use the commonly used early pregnancy test paper to test. If you are pregnant, you generally need to take a pregnancy test 10-14 days after having sex. If you want to know whether you are pregnant as soon as possible, it is best to go to the hospital for a blood test.