ok so here is the deal. I was on Depo for 6 months and got my last shot going on 6 months ago... I was on the pill for about a month after that to regulate my system again and have had 2 periods since getting off of the shot. My boyfriend and I haven't had protected sex in I don't know how long and he doesn't really pull out either.. with that said... I am 5 days late (my periods have NEVER been late) and have been feeling really off lately. I have been getting really light-headed, major equilibrium problems, been craving foods I don't like, been beyond tired all the time no matter how much sleep I get, smells are a lot stronger, I have been having tightness in my stomach, my body temp changes a lot, I feel nauseous occasionally, and I have too pee more than usual. What's going on? Could I be pregnant? Why are my HPT coming back negative? ?