Basically I've been with my boyfriend 8 months nearly I'm 17, and we've had unprotected sex for about 5 months I recently had my period And I was 3 days Late I've just come off 2 days early and now I'm experiencing brown discharge yesterday there was a bit of red blood aswell I've took a load of pregnancy tests all negative i keep feeling sick have pains in my sides,back and cramps it's stopping me from doing things they can be quite painful they aren't as bad today but I am quite concerned if anyone could help I'd be grateful Thankyou.