The normal value is 5mIU/L. Any value greater than this is considered as pregnancy, including intrauterine pregnancy and ectopic pregnancy. The smaller the value, the earlier the pregnancy. Generally, as long as the menopause is more than 30 days, pregnancy cannot be ruled out, and the earliest test at this time is urine HCG, which is divided into positive and negative. If the pregnancy is new or early, the blood HCG value is still low, but if it is an intrauterine pregnancy, the blood HCG will double every 2 days and the value will double, if it is an ectopic pregnancy, the doubling is not as fast as the doubling of intrauterine pregnancy. As long as the blood HCG exceeds the normal value, the smaller the value, the earlier the pregnancy.