birth control
"I've been on Depo for about a year.  My periods used to be very heavy but now they are very light.  The downside is that they last about 2-3 weeks.  I've gained about 20 pounds and experience some pretty crazy mood swings.  My libido has completely crashed and I almost always need to use lube.  I got Depo-Provera because it fits my lifestyle; there's no way I could take a pill at the same time everyday. "