In clinical practice, if the HCG level is not rising well after pregnancy, it is necessary to give intramuscular HCG injections to regulate it. Only when the blood HCG level reaches a certain level will the pregnancy continue and the embryo will grow and develop normally. Therefore, it is necessary to intervene if the blood HCG level is found to be low and not rising well. After the HCG is administered, a clinical review is also recommended. If the HCG level reaches within the normal range, the drug can be stopped after two days of consolidation. It is also recommended to do ultrasound examination at the same time to know if the embryo development is normal.