Bleeding with fetal heartbeat at 13 weeks of pregnancy is considered a possible preterm miscarriage, which can usually be successfully preserved. Most of the miscarriages can be preserved by fetal preservation. If the bleeding is not much, abdominal pain is not serious, you can follow the doctor’s instructions to take progesterone capsules to relieve the symptoms, at the same time, the mother needs to pay attention to rest, but generally do not need to bed rest, to avoid increasing the risk of blood clots, the need to prohibit sexual intercourse. Pregnant women need to undergo ultrasound examination, if you can observe the fetal heartbeat is normal, and the vaginal bleeding is reduced, this situation indicates that the birth control is successful, you can continue the pregnancy. If the ultrasound examination reveals that the fetal heartbeat is small and the vaginal bleeding increases, it is possible that the pregnancy has been aborted and there is no need to preserve the fetus. It is recommended that women need to go to a regular hospital to receive examination and treatment as soon as possible, and should not blindly use medication on their own to avoid adverse effects.