It is possible to have intercourse appropriately during pregnancy, but it is important to pay attention to the timing of intercourse and the physical condition of the pregnant woman. Experts believe that the first three months of pregnancy and the last two months of pregnancy, or those who have abdominal pain or vaginal bleeding, or those whose doctors think there is a possibility of miscarriage or premature birth, as well as those who have a history of multiple miscarriages or premature births, should pay attention to reducing the possibility of another miscarriage, as well as those who have obstetric reasons such as placenta praevia that should not have intercourse, are not very suitable for intercourse during pregnancy. First of all, when having sex during pregnancy, you must pay attention to the choice of position, in order not to compress the abdomen of pregnant women as a guideline. Secondly, the action should not be too intense, not too hard, not strongly stimulate the uterus, and not too long. In addition, semen contains prostaglandins that make the uterus contract, it is advisable for the husband to wear a condom when having sex. Pregnant women with a history of miscarriage, preterm labor precursors, uremia of pregnancy, and serious comorbid problems should not have sex.