could it be possible that I'm pregnant?

So, I'm ovulating. Or was. My periods are so irregular & it drives me crazy. Well, me and my boyfriend had unprotected sex a couple of days ago, I was on top & he said "a little went inside of me". Mind you i haven't had unprotected sex in atleast 2 years. It's beyond early to test of course, what are my chances? He asked me if I wanted his baby & I told him yes. He's about to be deployed for a few months & doesn't want to miss out on our babies appointments and stuff. I was going to send him ultrasounds & stuff like that but idk. Thoughts? Advice? Much appreciated. ☺️☺️☺️💘💘💘