hcg is clinically known as human chorionic gonadotropin. hcg values in women’s bodies rise significantly after pregnancy and grow at a rate that doubles every other day. For women in their fifth week of pregnancy, the hcg is formed by the trophoblast cells of the female fertilized egg, and the normal value of hcg ranges from 1000 to -50,000 IU/L. The development of the fetus can be inferred from the change in hcg value combined with the change in progesterone value. If the doubling of hcg value is better progesterone is within the normal range, indicating normal fetal development. If the hcg value is too low and the doubling is poor, or even if there is vaginal bleeding and abdominal pain and other aura manifestations, timely examination should be carried out and the fetus should be treated by injection or progesterone under the guidance of the doctor. It is recommended that women do the appropriate checks during pregnancy and observe their symptoms closely.