Newbie here. What day did I O?

Megan

Glow is saying I O'd on CD20. FF, set to research mode, says CD21. FF, set to advanced mode, says CD22. I had a positive digital opk in the evening on CD19. This is our second month TTC and my first month charting. My temps are coming from my Ava bracelet. Ava's o prediction is super off as it's my first month wearing it.

I just came off bc pills in mid June at the end of a pack. I had my withdrawal bleed immediately and 30 days later, I had a real awful 9 day long period. I'm not certain what my typical cycle length would be, but before bcp I usually ran 28-30 days.

Thank you for your help!!!