Pregnancy scare? Helpppp!?

So we had sex about a week and a half ago.. He didn't finish though and we didn't use a condom.. I just gave him a bj afterwords. Anyways, I didn't really bleed during the sex, it was like the very last day of my period. So like two days ago, I bled for a little bit, but it went away. I read when you lose your virginity, you don't bleed for a few days after, but this was like 7 days after. Is that normal? Also my vaginal opening itched for like 2 days like a week after i had sex, but its gone now. Thw only symptoms i have are just tiredness and nauseousness sometimes. Also I started my skating camp recently and it's really intense too, I've been feeling more tired... Idk if that's cuz of the camp or I could b pregnant?? My stomach is also harder but idk if it's my abs... Help thanks!