So how many days after AF do you ovulate?

We have been ttc for a while and my husband swear his baby juice was corrupted. Previous wife he got tested and had low count and me and his mom just said the juice didn’t want her😂😂. Fast forward to this year he got retested and had good numbers and I’ve been checked out and good. So my question is we are missing the ovulation mark because we should be up to baby 3 by now in 4 1/2 years!!! Usually how long after af do a woman ovulate. Cycle usually last 4 days with a 5th as a light what’s left day. Af ended Saturday and husband was out of town until today and of course I raped him💁🏽🤗