abnormal uterine bleeding
"I took the depo once because my mom wanted me on it as I  was going into college. I was not sexually active and didn't want it. I got it anyways. I received my one and only injection in June, and had the WORST hormonal period of my life after two months of not bleeding. That period was 3 weeks long. After that one, I didn't bleed for another 2 months. Now, I've been bleeding for a month and a half and have gone through two bags of pads. It's depressing and emotional that I can't be like I was before. I can't even enjoy any type of sexual contact with my boyfriend. I highly recommend NOT getting this shot, it's ruined my life."