Please help, I’m only 16

I’ve been doing foreplay with my boyfriend (I’m not on birth control) and we have not had sex. I have grinded on him while we were both in underwear, and he has also fingered me after touching himself. My period is late by 2 days and I’m freaking out. I’ve had no symptoms of my period coming or anything. I don’t think cum has gotten inside of me, but he has came on my butt. So I could be wrong. Could I be pregnant??