I had sex on the 6th of aug. and i've been on Birth control for more than 2 months. He used a condom too, but 3 days later i started to have stomach pains and nausea above my belly button and in between my ribs. Ive had nausea, bloating, and feeling gasy, breast tenderness, for a few days and this has happened on the pill before, but right now i'm just paranoid. Are these birth control side effects? help me! i dont think signs of pregnancy shows is early.

another thing is that he ejaculated into the condom, but i dont think anything leaked out or broke. and
i started/ended my period a week before (7/28/10) I had sex.