Ovulation experts I need help

C • Thu, Dec 28 • Married to my BFF. 👨🏻👩🏼 Oct18👼🏻 Feb20👼🏻

Oviously it is now Thursday but can anyone tell me when I Lille ovulated? I had period like cramps in the 16th and the 21st. And had intense ewcm and positive ovulation test on the 15th. I was sure one of those was ovulation - trying to figure out what dpo I am.