Im really confused I was on depo from november til january and was suppose to go back but never did so 2 weeks before I was suppose to get the next injection I bled well then it slowed down after a couple of weeks and stopped but in the mean time everytime I would have sex I would bleed very little after wards and I had some minor cramps so a week ago I started just spotting brown very light and as the week went on it got heavier but not more than a period then turned to blood and not its been 9 days straight I have been bleeding sometimes brown. Plus my boobs have been a lil sore up and down sometimes they are really sensitive but sometimes I can barely feel them and my lower back has been hurting a little but during bleeding I would have some cramps but most of the time I didnt and when I did they were so light and I have been getting headaches I took a pregnacy test 3 days ago and it came up a faint positive so I took 2 more and it they came up negative is it possible that I could be pregnant? Sorry so long thanks.