"worked fine the first five months of taking it. around month six, i started getting horrible heavy, crampy, clotty breakthrough bleeding with cramps that were up there in terms of the worst i&#039;ve ever experienced. it started giving me horrible migraines that made me unable to function. however, it did do it&#039;s job as a contraceptive. i never got pregnant the six months i was taking it, so three stars for it!"