So I was on the depo shot for a little over a year, went off for six months and then two weeks before I missed my period I went back on. I spotted a little but that was it. My lower stomach feels... Weird, my back hurts, I tired all the time, I smell and want random fpods at random times and I pee A lot, also my discharge is clear and it smelt like cum once and I hadn't had sex. although I did take a pregnancy test when I first missed my period it was negative but this was back in January and still no period!! Opinions?