If the fetus does not have a fetal heartbeat around 7 weeks of pregnancy, it usually cannot be saved. The fetal heart generally reflects the state of the fetus in the uterus, and the fetal heart usually begins to appear around 6 to 7 weeks of pregnancy. If the pregnancy is still early, you can still observe it before 7 weeks. However, prolonged absence of fetal heart may indicate embryonic arrest or vacuolar pregnancy, and it is usually not recommended to continue the pregnancy, and the pregnancy should be terminated in time to prevent harm to the mother. The reasons for the disappearance of fetal heartbeat include genetic and chromosomal defects in the embryo, abnormal development of the placenta, the pregnant woman’s own disease, the father’s sperm problems, etc. If there are many times when the fetus stops developing or there is a clear genetic problem, it is necessary to find out the cause of the problem and deal with the symptoms.