Could that of been implantation bleeding & could it have been too soon to get a positive test? I am on depo. I am due for the shot at the beginning of next week (4th one). I haven't had periods while on the shot, but have had some spotting that was never e

Yes, . Yes, pregnancy is a possibility. Hormonal swings could also be a possibility. Sometimes our hormones swing when we are on birth control and this can cause symtpoms as well. Please take a pregnancy test to be sure. If you have pain, fever, vomiting, or new complaints then please be evaluated immediately.