"i have been on and off several birth control medications for several years this is my first bad experience. i was originally put on ortho tri-cyclen then ortho tri-cyclen lo, then sprintec, then something else. but since i have been on trinessa i have yet to stop bleeding, i started the first day of my period had my regular period for my usual 7 days and have had continued spotting heavily everyday since. now going on my third week. as far as birth control is concerned very effective since i haven&#039;t been able to have sex since i started taking it, not exactly my idea of great birth control. "