It can greatly reduce your heavy periods. I used to have periods seven days long with
plenty of clots. It was heavy pretty much all the way through. On top of that, I had horrible nausea, cramps
, and lower back pains to the point I couldn't function the first few days and would have to miss school. Since starting the pill, my periods have been 2-3 days and sometimes light, sometimes moderate. Much, much better, and I can go out and function all days of my period.