It is also possible to get pregnant with an IUD, i.e., an intrauterine device (IUD), but the chances of getting pregnant are relatively low. The intrauterine device is an effective, safe, simple, reversible and economical contraceptive measure. It is one of the most popular contraceptive methods accepted by the majority of women and families in China, with a contraceptive rate of more than 95%. Generally speaking, you will not get pregnant after the intrauterine placement of the birth control device, or you may get pregnant, but the chances of getting pregnant are relatively low. If the sterilization device is placed improperly, the device is not placed to reach the bottom of the uterus; the size of the device does not match the size of the uterine cavity; the IUD is dislodged, ectopic, etc., it will cause the possibility of pregnancy. When a woman has a birth control device placed, she must follow the doctor’s instructions and go to the hospital regularly to review the position and shape of the device. Delayed menstruation after insertion of the sterilization device should also seek medical attention to rule out the possibility of pregnancy. Married women are advised to have an annual health checkup, strengthen exercise and pay attention to cleanliness and hygiene. Those who do not have the need to have children should take scientific contraceptive measures to avoid unwanted pregnancy and harm to their health.