Please help I’m 15 and possibly pregnant

So to sum it all up me and my boyfriend had unprotected sex on July 24. The next day I checked glow and noticed that my fertile window began that day we had sex 😭. He didn’t cum inside of me, I saw him and felt him do it on my back. (He says he knows when he’s about to cum) Well anyways.... I was scared so I told him to get me a Plan B and so I took it July 26th. My EXACT ovulation day according to glow is Today! (July 29) I’m so scared... are my chances to being pregnant high even though he didn’t cum inside of me?