The fluctuation range of HCG value during pregnancy is relatively large, about 1000-50000mIU/ml at 5 weeks of pregnancy, and the fluctuation range of progesterone is relatively smooth, normal >20ng/ml. Blood HCG and progesterone levels and growth or fluctuation range during pregnancy are important indicators for early judgment of embryonic development and the position of the embryo inside and outside the uterus. 5 weeks of pregnancy is the early early pregnancy time, due to HCG levels are affected by individual differences, the general normal range of 1000-50000mIU/ml. early HCG growth trend shows a doubling phenomenon, should pay attention to recheck the HCG to observe its doubling situation. Progesterone is generally greater than 20 ng/ml in early pregnancy is normal, if less than 20 ng/ml, need to be alert to the risk of preterm miscarriage or ectopic pregnancy.