It is less likely to have a fetal heartbeat and germ, but there is a certain chance, and it is necessary for pregnant women to take care and follow the medical advice for pregnancy care. Most of the cases of fetal abortion occur at this time are caused by sudden external stimulation during pregnancy, emotional problems or illnesses, but most of them can be prevented and avoided. Usually, fetal abortion occurs in the first trimester of pregnancy, mostly spontaneous, and is common in patients who do not have a fetal heart. This is because the cells are still in the differentiation stage and are therefore fragile and susceptible to abortion. When there is a fetal heart and germ, it proves to be more stable and less likely to be affected by external factors than before, so it is less likely to be aborted, but there is also a risk of abortion. Especially for pregnant women with a history of disease, such as patients with endocrine disease, polycystic ovary syndrome or immune system disease, etc., after having fetal heartbeat and fetal bud, they should also actively monitor the primary disease and actively follow the doctor’s advice, as such people may be more prone to fetal abortion compared to normal people. Pregnancy tests should be performed in a timely manner to understand the development of fetal heartbeat and germination to avoid accidents. It is recommended to perform weekly HCG monitoring and to know the changes of various progesterone hormones such as estradiol and progesterone. If hormonal abnormalities are found, treatment should be actively carried out and fetal preservation measures should be taken as early as possible to avoid adverse conditions such as fetal abortion.