Frequent coitus is not allowed in mid-pregnancy, but appropriate coitus is allowed. In mid-pregnancy, if you have sex frequently or when you have sex roughly, it may lead to uterine contractions, affecting the fetus and causing premature labor. Therefore, in mid-pregnancy, intercourse must be moderated and not too frequent and vigorous. Although, the mid-pregnancy fetal development in all aspects are relatively stable, it is possible to appropriate coitus. However, coitus should not be frequent, the movement should be gentle, pay attention to the posture, do not press the fetus, so as not to stimulate the contraction of the uterus, not conducive to the stability of the fetus. During pregnancy, you must pay attention to rest, do regular checkups, and observe all aspects of the fetus at any time. Early and late pregnancy should not be coitus, so as not to cause miscarriage or premature labor.