Pregnancy question

Amelia • 27yrs- taken by the handsome Daniel P.
So last night I had sex with my boyfriend. After when he finished he came on my labia. I started to get worried, because this is the first time this happened. But I'm also ovulation this week. According to <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a> I had a 9% chance of getting pregnant. But I'm a little worried if I do end up pregnant right now. I did talk to my boyfriend and said I can get plan b... which he said is pointless. I also mentioned I would be scared to abort because my chances of having children are slim. Pretty much my question is would I have to wait until later or closers too my period due date to know if I could possibly be expecting? Or is there a way to find out sooner..