Does early pregnancy have an effect on the fetus?

The first trimester of pregnancy and the third trimester of pregnancy are particularly dangerous periods, so cohabitation can occur in the first and third trimester of pregnancy. Cohabitation in the first trimester may cause miscarriage. Because during pregnancy, especially in early pregnancy, is the key period of embryo development, and embryo is not stable, placenta has not yet fully formed, and embryo development is mainly dependent on corpus luteum function to maintain, this time if the same room is likely to induce uterine contractions, thus causing abortion. Therefore, from a safety point of view, generally do not advocate the same room in early pregnancy. In addition, it is recommended that women pay attention to regular check-ups during pregnancy. Pay attention to rest during pregnancy and strengthen nutrition intake.