Pregnant

Im new to the pill ive been taking it for 2 months. But i just lost my virgenity and me and my bf always use a condom. And he still pulls out we have never not used a condom. But i can never take my pill at the same time everyday. Im afraid i might be pregnant. I an having some stomach pain and pelice pain and very little discharge. I have on and off temple to sweat band headaces. Im a really big worry wort idk if im having all this cuasr im new to the pill or im stressed from thinking im prego. Please help!!! Im only 16