You can have intercourse after the third month of pregnancy, but you should pay attention to gentle movements. Early pregnancy due to the development of the embryo is not stable, it is easy to increase the risk of miscarriage, so in the first three months of pregnancy should pay attention to appropriate rest, not tired and strenuous exercise, prohibit coitus. Generally in 3 months after the placenta has been formed, and fetal development is relatively stable can be coitus, but pay attention to the action to be gentle, can not be pressed to the pregnant woman’s abdomen, but also appropriate control of the frequency of coitus. During pregnancy, it is necessary to develop a good routine to ensure adequate rest, under the guidance of the doctor to increase diet and nutrition to ensure that the growth and development of the fetus, and since the middle of pregnancy to carry out a moderate amount of physical exercise to maintain appropriate weight gain. It is also important to avoid coitus in the first and second trimesters to avoid increasing the risk of miscarriage or preterm labor.