sept 3rd, unprotected sex but we used the pull out method and kept going after words. after being scared for a week, we realized i was just stressed. then 2 days before my expected period, on sept. 17, we didnt worry about getting pregnant. the next day, the 18th i started, but ver red and heavy. i wiegh around 128-130 average. i filled a super tampon in less than 3 hours. and it continued like that until around 5 pm on the 18th. this moring i woke to find almost nothing, maybe a little light red on a pantie linder but i also woke with a cold and fever. could i be pregnant or is this stress of going to college next year(only 17 btw) and this cold be messing with my hormones? please help any advice welcome!!