birth control
"I started taking these pills in hopes of having my period every 3 months. The first month of the pack, I don't bleed at all until about the last week I have some very light spotting that lasts up through the middle of the 2nd month/pack of pills....then it remains heavy from the middle of the 2nd month all the way through the end of the third month. So total I ended up bleeding for about 6 weeks straight through each pack of pills.  I've been on it for about 9 months now and this has happened every time. I will definitely be changing to another kind. I'd rather bleed once a month heavily than 6 weeks straight. I also was extremely tired all the time. The only positive is that it did prevent pregnancy and my skin cleared up tremendously."