Pregnant

So my period was on the 6th of last month and I think I remember it ending 8 day later and Tuesday night we had sex and he didn't pull out. My previous <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period tracker</a> was horrible and letting me know what day I was actually having my period and then referred to glow by a friend so I'm just curious if I could possible get pregnant at this time. Idk if it's to late for it or it doesn't matter when in your cycle to get pregnant I've hear many answers so I'm just confused on it all..need help very desperate!!