The medical term for pregnancy with an IUD is “pregnancy with an IUD”, and there are several possibilities for its occurrence: First, the uterine cavity of the patient is relatively large and the IUD is relatively small, so the fertilized egg will be laid in the uterine cavity next to the IUD, which will lead to pregnancy with an IUD. Most of them are seen in patients who did not go to the hospital for examination after the IUD and did not find that the IUD had moved down, so if you get pregnant again, you must go to the hospital for regular examination according to the doctor’s instructions.