birth control
"I was on this method of birth control from age 16-20. I loved it! I never noticed a weight gain, no periods at all for this entire time. In retrospect that probably isn't healthy but at the time it didn't bother me in the slightest. I had pretty intense mood swings, but I was also In a very unstable relationship at the time so I'm not going to pin the mood swings entirely on the depo. I recently switched to Trinessa pills and absolutely hate them, I never realized how happy I was with the depo shot until I started something else. I'm slightly concerned with the long term effects of the shot, but I might end up switching back to it. I know it has a rep for making people gain crazy weight, but it didn't have that effect on me."