pregnant

jordann
I have had cramps since last Saturday, like period cramps, but no period? my lower back hurts like crazy, and my nipples are so sensitive(which never happens.) I have been discharging for almost two weeks now really badly and normally I do that a week before being on my period but this time it's worse. I also went off my birth control two months ago because I had messed then up and I was trying to get my body back to normal. the last time I had sex was on may 5, 2014. I have taken two pregnancy tests from the dollar tree, but they both say negative. I am supposed to start my period next Tuesday the 22nd, is it too early to tell? am I just to nervous because I'm trying to get pregnant? help!!