Fertile Window 34-35 day cycle?

Question

I know you're supposed to ovulate later with a longer cycle but I know for a fact my angel baby was conceived on CD 15 and I have 34/35 day cycles. Does anyone with cycles similar to mine know their ovulation day/fertile window?

Answer

I have 34 day cycles and my app says I ovulate on cycle day 20- we’ll see though as I’ve only been tracking for 3-4months

Answer

If you BD on CD 15 it does t necessarily mean that you ovulated then, as sperm can live up to 5 days inside a woman.  So you could have ovulated as late as CD 20 and still conceived.  Unless you mean conceived as in something other than BD, I could be missing something of course.