How many years of college to become an OB-GYN?

Becoming a regular OB-GYN doctor (specializing in Acute and chronic medical conditions, Adolescent gynecology, Behavioral problems, some Cancer, Endocrinology, Health maintenance during pregnancy, Infertility, Operative gynecology, Pregnancy and delivery, Preventative health, Urinary tract disorders) would ONLY take approximately 8 years. 4 years of a college degree and 4 years of medical college. Although you would be paying a lot to become an OB-GYN it will be worth it in the end.