im young and i think im pregnant. any answers?

i started the contraceptive pill in september of 2011, but i stopped taking it in may 2012 because it was constantly making me ill. i have had sex many times unprotected throughout my relationship with my partner, and nearly every time he cums inside me. we do it probably 5-6 times a week. recently i have been cramping really badly in my lower stomach and i have had frequent headaches and feel really bloated and disgusting. i want to know what the chances are of me being prgnant because i stopped my pill 2 months ago and my partner has came in me alot since then. i havent really had any of the usual pregnancy symptoms like, nausea or anything. just what i written down. if you have answers can you tell me please?!