abnormal uterine bleeding
"This was my first birth control  I was put on. When I started it I absolutely loved it, cleared up my acne and no weight gained. I have always been a light bleeder and only every few months. With this, I started my period on the third week. By the fourth week I was bleeding so heavily I would have to change feminine products every hour, this lasted for three days before I called my doctor. She then had me taking a pill every four hours until it stopped. It made me so sick I had to stop by the fourth day. My period continued for five weeks, not stopping until I switched pills. "