Ultrasound can be used to determine the conversion of a uterine horn pregnancy to an intrauterine pregnancy, and repeat ultrasounds can be performed under the direction of a physician. In early pregnancy, when the ultrasound indicates that the gestational sac is located in the uterine cavity at the corner of the uterine cavity, it suggests that there is a possibility of pregnancy in the uterine corner, but because with the increase in gestational weeks and the uterus increases in size, the gestational sac may return to the normal uterine cavity position, so it can be instructed by the doctor to review the ultrasound in about 1 week. When the ultrasound shows that the gestational sac is already in the uterine cavity, then it can be determined that the pregnancy has turned into an intrauterine pregnancy, and the pregnancy can be continued. Whether the pregnancy is confirmed by early pregnancy test or blood pregnancy test, it is necessary to follow the doctor’s advice to carry out ultrasound examination at about 6 weeks after menopause to confirm intrauterine pregnancy, but also to exclude ectopic pregnancy, gravida and other pathological pregnancy. When the diagnosis is clear, it is necessary to pay attention to appropriate rest, avoid exertion and strenuous exercise, increase nutrition, and carry out prenatal checkups on time.