Can I detect pregnancy 20 days after sex?

After both parties have sex to have a baby, the mood of waiting for the good news of pregnancy will always be very expectant, and the process of waiting for the good news will always be long and anxious. At this moment, we can’t wait to know, can pregnancy be detected 20 days after having sex? Let’s find out together.

Can I detect pregnancy 20 days after having sex?

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

2. The principle of using early pregnancy test strips to detect early pregnancy is to test the hCG value, that is, the value of human chorionic gonadotropin in the body. This type of growth hormone is produced by the embryo and usually appears in the urine a few days after pregnancy. However, due to the small amount, it is not easy to test it at the beginning, and it becomes increasingly obvious after 10-14 months.

3. Although many pregnancy test tools indicate that women can take a pregnancy test one day after missing their normal menstrual period, in fact, not all pregnant women excrete the same rate and amount of hCG hormone. It varies from person to person. If a urine test is required, a negative result may be incorrect.

In the case of having sex without any contraceptive methods, it is possible to test whether you are pregnant 15-20 days after having sex. If the test result is not what you expected, don't be disappointed or discouraged too quickly. You can then continue to calculate the time of ovulation and check the regularity of your menstrual cycle to welcome the arrival of the next ovulation period.

When is the most accurate pregnancy test?

The test is relatively accurate if it is conducted one month into pregnancy or 7-10 days after menopause. When using it, choose the first urination in the morning for higher accuracy. Generally, HCG appears in the urine a few days after the sperm and egg combine and fuse with the sperm, and it must reach a certain ratio before it can be detected. It is also related to the application method. If the operation method is not good, deviations will occur.

Using a pregnancy test stick in the morning or at night may have different results and have a certain impact. The highest HCG value is usually found in the urine in the morning, so many instructions recommend testing it when you wake up in the morning, but this is not certain. Let me give you a warning: early pregnancy test strips are not accurate, and there are cases where testing is prohibited. They are only used as a standard for basic testing. It is best to go to the hospital for an HGC test.