I have been on depo for close to three months, my shot is scheduled for next Wednesday(Jan. 25). Within these three months I have experienced several symptoms. For the first month I was perfect, then in December I began spotting, sore breast, cramps, bloating, and lower back pain. My spotting was just brown discharge until just last week it has turned to bright red. I'm a little concerned as I am 17 and do not want a baby. So what are the chances I really am pregnant right now? Are these just common side effects of the shot? Are these signs the shot is working? Please give me any Info you know about the shot, my chances of being three months pregnant rn, or if you have experienced any of this!