For example, there are now two types of IUDs, one with copper and one with progestin. The copper IUD may affect the fertilization of the egg, and the progestin IUD may have a certain effect on the shrinkage of the endometrium. After removing the IUD, the endometrium may be damaged, and the process of removing the IUD is also an invasive operation, so it is recommended to at least give the endometrium a repair process, and it is not recommended to get pregnant immediately after removing the IUD. It is not recommended to get pregnant immediately after IUD removal, but at least after one period, preferably three months later. If the endometrial repair is not particularly good, it may cause unstable implantation of the pregnant egg or miscarriage. Pregnancy at too early a stage may also result in fetal malformation. The time to remove the IUD is usually 3-7 days after menstruation without intercourse, which means that if we remove the IUD after 3-7 days of menstruation without intercourse this time, intercourse is not recommended this time because after the operation, it is easy to have intrauterine infection. At least after the next menstruation, it means that the endometrium has a basic repair, at least three months later, the endometrium is better repaired, and this situation may be safer for pregnancy.