Both HCG values and progesterone are important, both HCG and progesterone play an important role during pregnancy, and you can’t have one without the other. HCG refers to human chorionic gonadotropin, a hormone secreted by trophoblast cells after pregnancy. Generally in early pregnancy, HCG levels rise relatively quickly, doubling on average every 48 hours or so. If the level of this hormone rises slowly, there is a possibility of a poorly developed embryo or an ectopic pregnancy. Progesterone is important for maintaining pregnancy, relaxing uterine muscle fibers, reducing uterine contractions, and facilitating the growth of a fertilized egg in the uterine cavity. If the progesterone is relatively low, it means that the luteal body is not functioning properly, indicating that the mother cannot provide a good environment for the baby to grow and develop. If in early pregnancy, found that the HCG value rises slowly or the progesterone level is relatively low, both need to do further examination and timely treatment.