Help... what day was ovulation day?

MrsM • Birthmother to 1 👨🏼‍🎓, mother of a teen 🤷🏻‍♀️ and a toddler 👦🏼, ttc #4 ✨🍼💙
Two different days on Glow and FF, only 2 days apart but I'd like to know. In FF I use FAM because I don't get accurate opk, I had almost a full month long positive when I was ttc my son. 
I already know it's more difficult to know for sure because it's a partial month but we just started trying and I wanted a baseline for next month and am hoping for some insight.
Thanks ladies!