Medroxyprogesterone
"I did several rounds of this birth control. At first I loved the idea of only having to worry about it every three months. My boobs grew so much! That was great and my period completely stopped all together. I was beaming the first month and a half. Then the spotting started (and lasted about three weeks) and I was steadily gaining weight despite eating healthier and working out five times a week. Eventually I lost my libido all together and was absolutely disgusted at the idea of sex. I couldn't even touch myself. I developed small zits in my forehead and horrible mood swings. Never. Again."