Pregnancy with an IUD has an impact on the child. Pregnancy with an IUD is prone to complications such as intrauterine bleeding as well as infection, which may eventually lead to miscarriage, and the IUD is prone to affect the development of the fetal sac, which may lead to fetal maldevelopment. If the IUD is inadvertently placed on the neck of the fetus, stillbirth will occur, and if it is placed on the wrist, ankle and other parts of the body, fetal malformation will also occur. Most pregnancies that still occur after a woman has had an IUD are due to ectopic, dislodged, or downward displacement of the IUD within the uterus. The IUD is still a foreign body in the uterine cavity, which may easily lead to the inability of the fertilized egg to stabilize the bed, or the occurrence of vaginal bleeding, preterm miscarriage and other undesirable conditions after the bed. Pregnancy after the IUD is most common in ectopic pregnancy, because the IUD prevents the fertilized egg from settling in the uterine cavity, so that the fertilized egg settles outside the uterine cavity and forms an ectopic pregnancy. If a pregnancy with an IUD is detected in the early stages of pregnancy, the pregnancy should be terminated by abortion as far as possible. If the pregnancy is detected in the middle or late stage of pregnancy, and the birth control ring has been squeezed aside after examination, and there is no other medication affecting the development of the fetus, then one can choose whether to continue the pregnancy or not according to one’s personal wish. If one chooses to continue the pregnancy, the development of the fetus in the uterus needs to be closely monitored and the number of obstetric check-ups needs to be increased.