HCG can also be measured in normal humans, but the value is low. Different test kits have different normal values for HCG, usually the normal human HCG is <25mIU/mL, if it exceeds this value, it means pregnancy, the higher the value means the longer the pregnancy. The HCG value varies in different weeks of pregnancy. In early pregnancy, HCG shows a gradual increase and reaches a peak around ten weeks of pregnancy, after which the HCG value can decrease or remain in a relatively stable range. Usually, pregnancy is determined when the HCG level exceeds the normal range of the kit. The value can be slightly elevated in early pregnancy and can be confirmed if it doubles in three days or so when the test is repeated. Content source: Dr. You Lai