My last depo shot was June 1. Didn't have another shot. Had my period end of August through mid September which is normal for me coming off the shot. Haven't had my period since then. I feel like I'm pregnant. I'm having cramping have taken a few hpt all negative. Having high bbts which are consistent and also what it looks to me as implantion bleeding very stringy pink-tinged which is not a normal period for me. My period is usual heavy bleeding and a straight 7 days. Need input PLEASE!!!!