Weak positive test before menstruation

Using ovulation test strips before menstruation will show a weak positive result, which makes people puzzled. In fact, the principle of ovulation test strips is to test our progesterone. If the progesterone is normal, it will cause abnormal progesterone before and after menstruation, so it will show a weak positive result. This symptom is also very normal. Don't worry too much, just keep a calm mind.

Why is the ovulation test paper weak positive before menstruation?

Women usually ovulate about 14 days before their next menstrual period, so they usually do not ovulate before their period. However, some women still find that their premenstrual test paper shows a weak positive result. What's going on?

Doctors say that after ovulation, the egg stays in the uterus for about 14 days. If it is not fertilized during this period, the corpus luteum atrophies and stops secreting estrogen and progesterone. At this time, the blood vessels in the endometrium contract, the endometrium necrotizes and falls off, causing bleeding and forming menstruation. In other words, ovulation should occur about 14 days before the menstrual period, and the strongest positive ovulation should be about 7 days before the menstrual period. Therefore, using an ovulation test strip before menstruation will also test weakly positive.

Ovulation test strips predict ovulation by detecting the peak level of luteinizing hormone (LH). There is such a situation: some people's LH level is always relatively high, and there is always a weak positive LH after ovulation. Some people sometimes have abnormal fluctuations in LH when menstruation is about to come. These are all normal phenomena. If you want to determine pregnancy through a positive ovulation test, it is recommended to use an early pregnancy test or go directly to the hospital for an ultrasound examination, the result will be clearer.