Week late ovulating?

Jo • Wife, mom-to-be with 1st baby, it’s a girl!

So according to all of my apps that track my periods/fertile week said I should have ovulated on the 13th/14th of November, but I never got a positive opk. Out of the blue today, I decide to try again, I instantly got 2 solid dark lines on the amazon cheapie opk and the solid smiley face on the clearblue digital. Is it weird to ovulate a week before AF? I’m so confused, my cycles have always been regular. Getting blood drawn tomorrow to check all my hormones/glucose levels.