How likely am i to be pregnant?

I had sex on my second fertile day im 4 days away from ovulating according to my <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period tracker</a>. I did start a week early this month so my fertile days and my O days changed.. i was supposed to start this week but that changed when i started early and made this my fertile window week.