i f21 and my bf 21m had sex on monday, it was pretty amazing, we did missionary and some riding. we were at it for about two hours. afterwards i was feeling okay but since tuesday i’ve been in so much pain, my body hurts and also my vagina. i’m cramping, and feeling nauseous. i went to the bathroom earlier, i wiped and there was blood, i don’t think it’s my period because that’ll mean i’m a week earlier than usual. i’ve never had this problem before so i’m unsure on what to do?