Changing fertile window

Janna • Mom to angel twins born sleeping at 18w and a chemical baby. RIP Maven and Macie and Littlefoot.
Will the green fertile window change once I add a positive OPK? I've know this whole month that glows prediction was going to be wrong (due to a wacky cycle last month) and now I've been getting EWCM but my fertile window still says 9 days away.