There is no absolute normal value for human chorionic gonadotropin. HCG levels in a woman’s body vary considerably before, during and after pregnancy. The normal value of human chorionic gonadotropin in an infertile woman’s body is less than 10 IU/L. At different times of pregnancy, the value of blood human chorionic gonadotropin in a pregnant woman’s body changes, at about 1 week of pregnancy, human chorionic gonadotropin is 5-50 IU/L, at 1-2 weeks it’s 50-500 IU/L, at 2-3 weeks it’s 100-5000 IU/L, at 3-4 weeks it’s 500-10,000 IU/L, 4-5 weeks is 1,000-50,000 IU/L, 5-6 weeks 10,000-100,000 IU/L, 6-8 weeks is 15,000-200,000 IU/L, and 2-3 months of pregnancy is 10,000-100,000 IU/L, which peaks and then begins to fall back. HCG will gradually decline after delivery, usually around 14 days after delivery, serum HCG starts to turn negative, and in about a month, it can return to non-pregnant level. If pregnancy is detected, you need to go to the hospital in time for relevant examinations.