birth control
"I started taking this pill over a year ago and nothing has changed hormonally for me. In the mornings if I don't eat at a certain time I do get nauseated and throw up but my cycle has always been on time and consistent. Maybe gained 10 pounds most but with exercise it helps. I have a very sensitive body and this is perfect for me. However it may not work for some people. Worst side effect I've had is not really sleeping might get five to six hours"