@starflame - like the others have said....I reckon you've got your O day covered! Lucky girl
@kelstar002 - if you O late in your cycle it really depends on what your lp or luteal phase does. From what I've read that can be anywhere from 10 - 16 days, although 12 and under are considered to be on the shorter side. That being said, my cycles were usually 24 to 26 days long, with O on cd11 or 12. I think I implanted relatively early with my bfp.
If it's a cycle where you don't O, I'm not sure when you could expect AF, sorry.