Generally, most of the IVF transfers can see fetal heartbeat and buds at 6 weeks, but there may be individual variations. In vitro fertilization-embryo transfer (IVF-ET) is a technique operated by a professional doctor. Generally, blood or urine HCG (human chorionic gonadotropin) tests are performed about 2 weeks after the transfer to confirm pregnancy, and ultrasound examinations are performed 4-5 weeks after the transfer to confirm intrauterine pregnancy. Therefore, the fetal heart can be seen under ultrasound at more than 6 weeks after the embryo transfer, but there may be individual differences. After the embryo transfer to confirm the pregnancy need to pay attention to not to carry out heavy physical labor and strenuous exercise, continue to follow the doctor’s advice to give progesterone and other supportive treatment. Appropriate increase in diet and nutrition, when it is clear that the normal pregnancy should be carried out on time for prenatal examination. When abdominal pain, vaginal bleeding and other abnormalities need to go to the hospital in a timely manner, and active treatment.