ovulation after cycles?

Jaylean • Married💍, Lost My 2 Angels👼👼, Praying For A Rainbow Baby Soon!💜💙

I had to change my current period on here a couple of times because it stayed longer than expected. my periods are already irregular, and before I changed it, it gave like a few days between my period end date and my open fertility window, and now that I changed my period on her my window hasn't changed from were it was, what should I do? is my fertility window still the same?