i had sex for the first time a couple weekends ago. at the end of june. then my july period came early, or what i think was my july period. i started bleeding about 5 days before it usuallly comes. i bled for 4-5 days on and off the whole time. i heard that being nervous can make your period screwed up. the sex was protected. but i know about pre-cum and such things, im worried about being pregnant. what do all of you think? please respond.