i've been on b/c for about 7 months. i was taking loestrin fe for 3 months and switched to tri-sprintec which ive been taking for four. im supposed to start my period in about 2-3 days. i have been having brown discharge for about 5-6 days. (week before my period) the last time i had sex was about four weeks ago and he went in me. i was kinda staggered on taking my pills that month and got my period later than usual. this month ive had brown discharge that has been very light and sometimes stringy and mucusy. one time i wiped and there was a little pink in it. also, ive been feeling fatter and cant really suck in. my left boob around my nipple has been hurting and ive had pain below my belly button. ive also been feeling nauseous in the mornings to the point where my head is in the toilet and im drooling and gagging but nothing comes out and eatin doesnt help. am i pregnant or something else??