The levels of hCG increases every two to three days as your embryo continues to develop. hCG levels peak around the sixth week of pregnancy. Afterwards, hCG will be found in your body, but the levels will begin to decrease. Once the placenta is fully formed, it serves as a source of progesterone production and assistance from hCG to support ovarian function is no longer essential. What problems can occur with hCG? Very high hCG levels are rare. In these cases, it may be sign of a molar pregnancy, which is an abnormal growth of cells that usually develop in the placenta. In people who are not pregnant, high hCG levels may be due to certain cancers such as breast, kidney, and lung. Having the guidance, support, and experience from medical professionals who specialize in managing weight loss exclusively through nutrition and exercise, enhanced by lifestyle coaching taught by psychologists, is what separates the Pritikin Weight-Loss Program from other resort-style or intensive conditioning experiences.