Having sex in the first two months of pregnancy may have an effect. The first two months of pregnancy in the early stages of pregnancy, at this time the fertilized egg is in the critical period of continuous growth, embryonic development is still unstable, pregnant women can stimulate the uterus when having sex, inducing contractions, so the first two months of pregnancy sex has the adverse effect of causing embryonic abortion. The first two months of pregnancy pregnant women’s body resistance will be relatively reduced, in favor of the development of heterogeneous planting of the embryo, at this time to have sex can destroy the balance of the vaginal flora, bacteria can be infected upward, leading to pregnant women to appear vaginitis, intrauterine infections, pelvic inflammatory disease and other diseases of the adverse effects. Pregnant women should not have sex in early pregnancy, and should seek medical attention when abnormalities occur, so as not to delay the condition and lead to adverse consequences.