"i&#039;ve been on ortho-tri-cyclen for almost two years. i was put on it for acne but also to prevent pregnancy. it has cleared up my skin very much and i am not pregnant, however, in recent months something has changed. i get extremely nauseous/throw up hours after i take the pill (even if i eat before), i feel lightheaded and dizzy, sex drive has definitely decreased and i am losing weight. pregnancy tests have come back negative so it is definitely this pill. everyone is different but this pill has been making me so sick lately so i will be switching."