If TBHCG exceeds 5miu/L, pregnancy can be considered, if it exceeds 10miu/L, pregnancy can be basically confirmed, with the increase of pregnancy time, TBHCG will be doubled, under normal circumstances, the normal value of TBHCG in the serum is 0-2.9miu/L. If you have had sexual intercourse before and have not taken any contraceptive measures, and have blood drawn to check the TBHCG 10 days after sex, you can confirm whether you are pregnant or not. TBHCG, can confirm whether pregnancy. The higher the value, the longer the pregnancy, ranging from 9-130miu/L at 3-4 weeks of pregnancy, and 75-2600miu/L at 4-5 weeks of pregnancy. If the level of HCG does not increase with the number of days of pregnancy, or if the increase is small, it should be considered as a sign of embryonic dysplasia, ectopic pregnancy, or preterm miscarriage.