"i was 16 when i started depo and almost 18 when i stopped. i have always been very regular hormonally, my periods have always been around 3 days &amp; fairly light with minor cramping. the first 2 shots (six months) were the worst -i experienced bad vaginal dryness which made intercourse painful, and the first &amp; last period i had was horrible - heavy bleeding, kind of chunky, with severe migraine and cramps. after that everything seemed to smooth out. i stopped having my period, vaginal dryness went away, everything was very regular down there. the downside i experience was i began to exhibit severe depression as time went on. i lost 30 pounds, i went from 120 to 90 pnds in two years. great birth control but i feel like it ruined me mentally :("