Can you get herpes in your butt

I'm a virgin and the other night I met this really nice guy at a bar and I was really attracted to him, he made numerous attempts to get into my pants and so I kinda gave in. I didn't wanna lose my virginity to a stranger so I let him put his penis in my butt, and it's been a week since that happen and now I can feel like bumps on my butthole...is it herpes?