Honestly, I am not sure when they become "eggs"
Post ovulation, though I'm not sure how soon after!
I do not know if she will end up with 10 eggs or not. I have never been great at feeling follicles at that stage. It seems like some of the smaller ones may get reabsorbed? These threads are very interesting to me because its not very often that the "inside" information posted.
Please update once she has ov'd and laid!