Please just reply I'm desperate

Can I become pregnant if my period ended on October 27-28 and had sex on October 31(started without condom, and after 5 minutes or less he put on a condom and came 1 hour later), and my fertile window started November 2nd (according to <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a>)