What are my chances?

So my period was due August 2nd and she was a no show. We BD on the third thinking it would help bring it on and then next day I was cramping so bad I was in tears (the last time I had cramps that bad was when I was on clomid). My husband made a comment saying it sounded like ovulation pain so I went and took a opk and it was blazing positive. We aren't trying for a baby and are possibly done with having kids. (We have two) I took another opk this morning and it again was pretty positive. Have an ovulated yet and if not what are my chances of getting pregnant after ovulating a few days after having g unprotected sex. Yes I know there is a chance which is fine.