"i was on the pill for about 8 months. the only side effect i experienced was a low sex drive. other than that, the pill was effective! i had regular five day periods, no headaches, no nausea, no weight gain, and (thankfully) no mood swings. i am no longer on trinessa because of the lack of libido (i was on it purely for contraceptive purposes). if it hadn&#039;t been for that i would still be on it!"