Ovulation help!!

Christina

OPK help!

Cycle day 13 (aug 19th I expect this was my peak day 🤷🏻‍♀️ + OPK). Cycle day 14 (aug 20, also + OPK just a little lighter, closer to color of control line). Clear negative OPK cycle 15 (aug 21st).

Which day would you say I O’d on? 🤔 🤷🏻‍♀️