The chances of success in preserving the pregnancy by bleeding in the early stages of pregnancy are mainly related to the quality of the embryo, the morphology of the uterus, and the amount of bleeding. 1. Good embryo quality: If the embryo itself is of good quality and the genotype of the embryo is normal, then the success rate of abortion preservation will be higher. 2. Normal uterine morphology: the uterine morphology of the pregnant woman is normal, and there are no endometrial polyps, fibroids, double uterus and other uterine pathologies. Then the success rate of abortion preservation will be higher. 3. Bleeding: If the bleeding is caused by the low level of hormones in the pregnant woman’s body, and the bleeding is not large, and there is no abdominal pain, etc., after strict bed rest and hormone supplementation and other treatments, the success rate of fertility preservation is still very large. If the pregnant woman herself is in poor physical condition, with heavy bleeding and blood clots, the success rate of fetal preservation will not be very high. In the early stage of pregnancy, if there is a small amount of vaginal bleeding, the embryo is of good quality and the uterus is of normal morphology, after active symptomatic treatment, the success rate of preserving the fetus will be higher. Pregnant women who experience abdominal pain or abnormal vaginal bleeding in early pregnancy must go to the hospital as soon as possible.