What are my chances?

So yesterday (8/15) my boyfriend and i had unprotected sex. We use the pull out method and as he pulled out some semen got right on the outside of my vagina

Also yesterday marked the first day of my fertile days and this app said I’d have about a 9% higher chance of pregnancy

So I obviously won’t know if I’m pregnant or not until I miss a period and test, but I’m just curious as to what my chances are?

Thanks ladies! ❤️