The early pregnancy test taken before menstruation usually does not show a false positive. HCG secretion starts seven days after the union of sperm and egg, and a positive test with a morning pregnancy test indicates that the HCG is elevated due to the union of sperm and egg in the body. Since this test only shows an increase in HCG compared to the normal value, it is not possible to determine whether the increase reaches the value of fetal implantation. If the sperm-egg union fails to establish or there is not enough hormone to support the growth of the gestational sac and a biochemical pregnancy occurs, it will appear like a normal menstruation or a period of normal menstruation, which is thought to be a false positive, but the HCG is indeed elevated, only that no substantial gestational sac is produced, so it is not a false positive, only that the gestational sac did not establish and no fetus is formed in the body. This situation has no major impact on a woman’s body and she can usually try to get pregnant again the next month.