abnormal uterine bleeding
"I've had 2 shots and go for my 3rd one the 14th of this month. I never bled when I got my first shot. I didn't bleed at all until August I bled for an hour one day and that was it, it happened again in September, and not again until now. I started after I had sex with my boyfriend one night and bled the next day but it quit that night and it wasn't bad. I went the next day without bleeding until that night, I bled but not much at all. Didn't bleed for 2 days and then it came back but it was brownish. This has happened the past 2 weeks. I know I get my shot in a few days but it's never been this irregular. But it hasn't made me lose my lose my sex drive at all and I haven't gained any weight on it."