Can someone tell me what's going onn?

Well first I thought I pregnant b/c me and my boyfriend used pull out system 2 days before ovulation. I was cramping all month from ovulation I read that can be a sign of being pregnant. and right around time for implantation I had spotting that was just like it and that never has happend to me. I also had no before my period cramps like a normally do. This period has the worst cramps and tmi it's mostly bright red blood and a lot of it and I have some pregnant signs I just want to know what's going onn:/