abnormal uterine bleeding
"So I've been on the Depo shot for about 5 years now, and have had hardly no problems. I still get period cramps, but no bleeding after the first year. The only issue I have with this medicine is for about the first year your period is all over the place and your sex drive is a little lacking, but otherwise it's pretty great. I reccomend you get the shot every 11 weeks though because on the 12th week you may start spotting and bleeding and having period symptoms-even if you had yuor period a week ago. So, I've had pretty good experience with it."