7 weeks pregnant without fetal heart and buds but no bleeding symptoms, may be a short period of pregnancy, may also be the embryonic arrest performance, need to do a good review, diagnosis and symptomatic treatment. 1. Short pregnancy: generally in about 50 days of pregnancy can do ultrasound to see the fetal buds and fetal heart, and some women’s menstrual cycle is long, fertilized eggs late, fetal buds and fetal heart will be delayed in the appearance of time. If the blood HCG test doubles normally, without abdominal pain and other uncomfortable symptoms, you can go to the hospital after a week to do ultrasound review, under normal circumstances can grow buds and fetal heart. 2. Embryo abortion: If the progesterone is low and the HCG doubling is normal, it may be the phenomenon of delayed embryonic development caused by low progesterone, you can take or inject progesterone under the guidance of the doctor to protect the fetus, and follow up the development of the embryo. If there are no buds and fetal heart after one week’s review, it is considered that there is a higher chance of fetal arrest, which needs to be combined with the blood HCG test to confirm the diagnosis and terminate the pregnancy in a timely manner. Pregnant women during pregnancy should pay attention to do a good job of prenatal checkups, and actively listen to the advice of professional doctors to do a good job of comprehensive care and health care, and at the same time should relax, to avoid nervousness, anxiety, any discomfort should be promptly to the hospital, by the doctor to clarify the diagnosis, and cooperate with the doctor to deal with the symptoms.