Could I possibly be pregnant?

I had sex twice in about a two hour time frame but he pulled out both times. My <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period tracker</a> app said It was my ovulation day so what are my odds of getting pregnant from that? I really DONT need a kid right so no one scare me!! 😂😂 Just maybe give me some statistics.