If you have a normal delivery, getting pregnant again four months after giving birth will have little effect on the woman and the fetus. If you have a cesarean section, getting pregnant again four months after giving birth will be more harmful to the woman’s body. In the case of a cesarean section, a second pregnancy four months after delivery will have little effect on the woman and the fetus. If the embryo develops normally, the woman can consider continuing the pregnancy. If you get pregnant again four months after a cesarean section, the uterus has not yet fully recovered and may rupture as the gestational sac grows larger. It is better to get pregnant six months to one year after the birth of a normal baby, and at least two years after the birth of a cesarean section. It is recommended to prepare for pregnancy three months before having a baby, and it is best to go to the hospital to complete the relevant examinations to promote eugenics.