Aunt refers to menstruation. Positive ovulation test paper before menstruation is not necessarily a sign of pregnancy. Ovulation test paper is a test paper that predicts ovulation by testing luteinizing hormone in the urine, so a positive ovulation test paper may result in ovulation.
The principle of ovulation test is to detect the concentration of luteinizing hormone in urine, which is directly related to luteinizing hormone in blood.
Usually there is a peak of luteinizing hormone in the body before ovulation, and ovulation occurs after the peak. A positive ovulation test before menstruation indicates a high level of luteinizing hormone, which may lead to ovulation or pregnancy.
If women want to test for pregnancy before menstruation, they can do so by using early pregnancy test strips, preferably taking the mid-range of the first urine in the early morning, which is more accurate, or they can go to the hospital for a blood HCG test.