How likely is it?

I hope this isn’t a silly question or one that gets asked a lot but this is my first time TTC.

My average cycle is 34 days and the <a href="https://play.google.com/store/apps/details?id=com.glow.android">Glow app</a> predicted my ovulation day as April 5th. We had unprotected sex on April 3rd. Is it likely that I am pregnant or should we have had sex on the 5th?