Everyone knows that the ovulation test paper is used to test LH, which mainly measures the luteinizing hormone (LH) in women; the early pregnancy test paper is used to test early pregnancy, which mainly measures the human chorionic stimulating hormone produced by embryonic trophoblast cells. Gonadal hormone (HCG). On the surface, these two hormones are unrelated, but after the ovulation period, when it is impossible to ovulate, some sisters use ovulation test strips to detect strong positives. How can this happen? It turns out that the molecular structures of the two hormones LH and HCG are very similar. At this time, in addition to LH, the ovulation test paper also detected HCG, and there was a cross-reaction. Therefore, before the early pregnancy test paper, the ovulation test paper can detect pregnancy earlier.
But will it be the other way around, and can pregnancy test strips also detect ovulation? This is impossible, and pregnancy test strips are manufactured with this in mind, which eliminates the possibility of cross-reactivity. Therefore, it can only detect HCG.
Why is this necessary? That’s because when ovulation is measured, there is basically no HCG in a woman’s body. Therefore, the ovulation test paper does not need to consider the effect of HCG on it; when using the early pregnancy test paper, a certain amount of LH already exists in the female body. Therefore, the early pregnancy test paper must first eliminate the effect of LH on it.
This article is provided by Baidu Reading and is excerpted from \”Pregnancy Can Be Simple\” Author: Feifei Mom