I got my first depo shot in December 2012 and my periods stopped immediately. It is now September 2014 and until tonight I have not bled, had a period or spotted at all since I began taking Depo. Earlier tonight I had noticed a bit of abdominal cramping but didn't think much of it. After about an hour of the cramping I went to the bathroom but when I wiped the toilet paper had a fair amount of bright red blood on it. Now for the past hour or so I have been bleeding as though I am having a period. I am sexually active if that makes any difference. I'm just concerned because I have not had any bleeding what do ever for almost 2 years and now I'm having what seems to be a period. Is this normal? I am due for my next shot in 10 days and have not missed a single shot. HELP?!