Can someone please explain this to me!! LATE OVULATION

So, if you BD (unprotected sex/ baby dance) when glow predicts you were ovulating and then don’t anymore after that and you end up ovulating late.. period is late by a week. Did you still get pregnant from the time you BD ??? Just really confused on how that works. I’m pretty positive I’m pregnant with very faint lines but super super faint :( AF is 1 week late and I see that some people that don’t get their BFP for awhile find out they ovulated late. But my hubby and I only had sex that one time. If I ovulated late, could I still be pregnant from then?? Sorry, I hope that makes sense.