Women can have moderate sexual intercourse during the 4th month of pregnancy. Generally speaking, in the first three months and the last three months of pregnancy need to avoid sexual intercourse, this period of time, intercourse, is likely to induce uterine contractions, resulting in miscarriage or premature labor and so on. When a woman is 4 months pregnant, the placenta has been formed, the fetus is more stable at this time is not easy to be stimulated by the outside world, women in the mid-pregnancy of the early pregnancy reaction is not as serious as before, so you can carry on a moderate sex life. But need to pay attention to the number of sex life, should not be too frequent, coitus should not be too intense action, to prevent the impact on the fetus. Pregnant women need to maintain good daily habits, diet should be light, more vitamins and protein. Do not press the pregnant woman’s abdomen during intercourse, before intercourse should be appropriate to wash the sex organs, so as not to cause fetal infection and pregnant women vaginal infections and other adverse effects, after intercourse to do a good job of pregnant women should do a good job of vulvar cleansing. If there is discomfort, you need to consult a doctor in time.