"i started sprintec last november for my heavy periods, and for that it&#039;s working great. it has reduced my periods from 10 days to 5 days and after the first few months, they are now incredibly predictable. i know exactly when they&#039;ll start and end and what flow intensity to expect each day. they have also considerably lightened my periods. the only side effect i have noticed is weight gain. it may not have helped that i started the pill around the holidays, as i have found myself with a bigger appetite since starting sprintec. i gained about 10lbs by about january (but i haven&#039;t gained since then due to changes in diet) and went up about 1.5-2 cup sizes (so annoying since i&#039;m an athlete). my butt and thighs also got noticeably bigger."