scared teen

Me and my boyfriend haven't had sex. We were fooling around but we were in our underwear. I know it sounds stupid..but I'm too scared to not be a virgin.. so that's the closest thing we've done. He precame on my underwear but nothing more. I got scared and I got up and took my underwear off, and told him I didn't want to do anything anymore. Now it's around my period time and I'm a few days late.. 😭 I'm so scared.. 
Update: I ended up starting my period. Thank you all for the comments. :)