Level 1: What is HCG? HCG, short for human chorionic villus, is a hormone produced by the embryo and placenta. HCG levels rise significantly early in pregnancy and peak at approximately 10 weeks. Therefore, testing HCG levels in the blood can be used to confirm pregnancy. Level 2: What is the normal value of HCG at 30 days of pregnancy? In early pregnancy, HCG levels typically increase exponentially. According to research, normal HCG levels range from 10-7500mIU/mL at 30 days of pregnancy. However, this range does not apply to every woman because each woman’s