Scared

I really need help i just turned 17, my boyfriend and I had unprotected sex early this morning, he pulled out when he cumed and wiped it off good then he went back in, I hadn't checked my <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period tracker</a> in a while so I checked and today is my ovulation day, I'm freaking out and idk what to do I can't go to an adult or we will get split up, I can't loose him again, idk what to do, can I get pregnant even tho he wiped it off and if so how early will I know, I'm sorry to bother yall I don't know what to do I need help