Norethindrone
"I started this pill when I first had my son. It was great at first and I experienced zero side effects. Then everything hit at once. My periods are almost constant, I've gained a crazy amount of weight even though I do heavy cardio 4 times a week and eat a healthy, vegan diet. I really liked this pill but it's inconvenient for long term use. I really can't wait to discontinue using it."