So i had sex with my boyfriend, I was on the 4th day of my period, we had sex unprotected yes i was dumb, but we didnt do it for very long lets say for 2 mins? But he didnt cum in me at all because after he was still dry. After we were finished i was still bleeding a little and had old blood pour out of me since it was all brown. Lately ive been having headaches here and there, not really hungry, no spotting, no throwing up, ive been getting bloated here and there also, im supposed to start soon but im scared that I am not. Is it all in my head of being pregnant and stressing out? I need help. Ive been having cramps also little ones but their mostly gas, or small cramps that dont last very long maybe 5 mins? What is happening?