When will ovulation happen?

I finished my last pack of birth control pills this week; last hormonal pill was 10/10. I’m currently having my normal withdrawal bleeding. Everything I read says ovulation normally occurs 2-4 weeks after stopping the pills.

Do I mark my withdrawal bleeding as a period to make the ovulation prediction more accurate? My cycle was always regular before birth control (30 days off BC, 28 on BC).

Me and my husband are so ready to start TTC!