As long as the expectant father and the expectant mother are healthy, they can still have a normal sex life during pregnancy. But there are generally two concerns: 1. Uterine contractions during orgasm may lead to miscarriage or premature birth; 2. Bacterial infection caused by penile insertion. Therefore, if the following situations may endanger the health and safety of the expectant mother and fetus, sexual life must be temporarily stopped. 1. Previous miscarriage experience If the expectant mother has had a miscarriage in the past, doctors will recommend that the pregnant woman abstain from sex in the first few months of pregnancy until the risk of miscarriage has passed. 2. When there is a threat of miscarriage, if the expectant mother has vaginal discharge during or after sexual intercourse