Women can get pregnant during breastfeeding, which is affected by breastfeeding, and many women do not return to menstruation until about 3-6 months after giving birth, and some may take another 8-10 months to return to menstruation. Because of the lack of menstruation many women have the misconception that they will not get pregnant at this stage and therefore do not use contraception, which is definitely not true. This is definitely not true. During breastfeeding, although menstruation does not occur, the ovaries normally ovulate, and the basic condition for pregnancy is the release of an egg, which can lead to unwanted pregnancies if contraceptive measures are not taken during this period. Therefore, during breastfeeding, it is necessary to take proper contraceptive measures, the most suitable is the instrumental contraception, you can choose to have an IUD or use a condom, and the time to have an IUD is 3 months after the delivery of a flat birth, and the time to have a cesarean section is 6 months after the delivery of a baby.