I take birth control pills so i wont miss my period for about 2 more months, but my boobs are allllways sore..i cant even let my boyfriend play with them because it hurt to the touchhhh, and my stomach hurts i guess its called my abdomins and pelvis or whatever, it feels like im being stabbed over and over out of the blue, and i eat like a pig. but i always have. i try to tell my boyfriend all of this is wrong and he just says "tell your mom and tell her to take you to the doctor"...
It's probably nothing to worry about, but to put your mind at ease mention it to your doctor in case. You might need to switch your birth control pills. Some people can't take certain type. My girlfriend had to switch recently as hers were giving her high blood pressure!
I wouldn't worry, like he said ^^ but assuming you're young, teenage or whatever (I am too), I'd tell my mom, or at the very least go buy a pregnancy test from like walmart or wherever (not the cheap ones, they aren't always very accurate), hope I helped. (: