How long does it take for the test strip to detect pregnancy?

As we all know, there is one major event in our life that we all go through in our lifetime, and that is getting married. After getting married, everyone also looks forward to the emergence of their own emotional crystallization. When a woman feels that she seems to be pregnant, she will always feel very excited. In fact, there are many ways to know whether she is really pregnant, and using a pregnancy test strip is one of them. So, how long does it take to detect pregnancy using test strips?

How long does it take to detect pregnancy using test strips

Pregnancy test strips are usually used about 14 days after intercourse, and can detect pregnancy from urine. The principle of pregnancy test paper is to test the hCG value, that is, the value of human chorionic gonadotropin in the body. This growth hormone is produced by the embryo and usually appears in the urine a few days after pregnancy. Pregnancy test strips are a type of pregnancy test that uses the reaction displayed by the fusion of single or multiple hCG antigens in the device with antigens in urine to determine whether a woman is pregnant.

Although many pregnancy test strips indicate that women can take a pregnancy test one day after missing their normal menstrual period, in fact, not all pregnant women secrete the same rate and amount of hCG hormone, which varies from person to person. Obstetrics and gynecology experts emphasize that if urine tests are done too early, the negative results may be incorrect. Therefore, it is best to take a pregnancy test one week after your period is late, so that the result will be more reliable. The pregnancy test paper can be used for testing 7-10 days after sexual intercourse. Naturally, the longer the time, the more accurate it will be. The principle of pregnancy test strips is to test the hCG in urine, which is the value of human chorionic gonadotropin. This type of hormone is produced by the embryo. Generally, the trophoblast begins to secrete a small amount of hCG on the 6th day after oocyte fertilization. hCG can be detected in the peripheral blood about 1 day later, while the appearance of hCG positive reaction in urine is later than that in blood. The success rate of pregnancy test strips is about 75% to 80%. If the information on the pregnancy test strip is negative, it means that the possibility of pregnancy is small.

Even if the information shows that you are not pregnant, it is recommended to come back for another checkup two days later, because the result of a single test can be easily affected by many factors. It is recommended to relax during the test. If you still feel uneasy, it is recommended to go to the hospital as soon as possible for a blood hCG test. This method is very accurate for diagnosing pregnancy.