The normal value of HCG in two weeks of pregnancy is usually between 50-500IU/L. The range of fluctuation of HCG values after pregnancy is relatively large and is not comparable between different women. If the fertilized egg is formed and transplanted into the uterine cavity early, the level of human chorionic gonadotropin secreted by trophoblast cells will rise faster; if the fertilized egg moves slower or arrives at the uterine cavity later, the level of chorionic gonadotropin in the blood will also be slightly lower.