Ovulation test strips darken in color

In addition to early pregnancy test strips, which are used to detect whether a woman is pregnant, there are also ovulation test strips in pharmacies. In fact, ovulation test strips are mostly prepared for women who are preparing for pregnancy, because having sex during ovulation can greatly increase a woman's chances of pregnancy. And when using ovulation test paper, the method of use is similar to that of early pregnancy paper. But if the color of the ovulation test paper is gradually getting darker, is it the ovulation period?

The main difference between the working principles of ovulation test strips and early pregnancy test strips is that they measure different hormones. The ovulation test paper mainly measures the luteinizing hormone (LH) in the female body; the early pregnancy test paper used to test early pregnancy mainly measures the human chorionic gonadotropin (HCG) produced by the embryonic trophoblast cells.

Ovulation test strips predict whether ovulation will occur by detecting the peak level of women's luteinizing hormone. Normal women maintain a small amount of luteinizing hormone in their bodies. In the middle of the menstrual cycle, the secretion of luteinizing hormone increases rapidly, forming a peak, and within the next 28 hours, it stimulates the release of a mature egg, that is, ovulation. Therefore, ovulation test strips can enable women to predict when is the best time to conceive or use contraception.

The working principle of the early pregnancy test strip is to measure HCG. Human chorionic gonadotropin (HCG) is a glycoprotein hormone produced by the placenta of pregnant women. The early pregnancy test strips use double antibody sandwich one-step technology and colloidal gold as an indicator marker to detect the HCG concentration in urine to confirm whether a woman is pregnant.

In fact, the method of use is the same as that of testing ovulation. If you can still test strong positive results during the non-ovulation period, you are very likely pregnant. Some women, using ovulation test strips, get a weak positive result on the 9th day after ovulation, and confirm pregnancy on the 11th day. Of course, most women use ovulation test strips around the 10th or 11th day after ovulation. Generally speaking, ovulation test strips can detect pregnancy 2 days earlier than early pregnancy test strips, but the results are not 100% accurate.

The above is the introduction about why the ovulation test paper darkens on the 9th day of ovulation. There are many reasons why ovulation is only false, and other possibilities cannot be ruled out. But generally speaking, the biggest possibility is pregnancy. If you want to know the exact answer, it is recommended that you go to the hospital for a full body check-up. This way you can feel more at ease and you don’t have to worry anymore after getting the exact answer.