Negative HPTs, 2 weeks missed period & symptoms

I had 2 faint lines a few weeks after ovulation and suddenly I take another test just to be sure and it's negative! I was 2 weeks past my missed period but up started experiencing vaginal bleeding on 7/12/14 and at first it was light pink then it became red. I am having symptoms such as pelvic pains , increased appetite and weird cravings, leg cramps, metallic taste in my mouth and every time I press on my belly, it pops like something moved! What's going on? If I am pregnant, can I feel movement this early? I could be about 4-8 weeks pregnant, maybe more I'm not sure and doctors aren't telling me anything.