Scared

I'm really scared I just turned 17 and my boyfriend and I had sex unprotected, this morning, I later looked at my <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period tracker</a> app and today is also my ovulation day, he pulled out but he wiped it off really good and went back in, is their I chance I could get pregnant and when will I know, I still have two weeks till my period and I'm really anxious right now I can't go to an adult or we will get split up , I don't know what to do