Are you sure she had follicles? I ask, because I have about 6-10 females that I have been breeding for 3 or 4 years now with no clutches. While I have access to an ultrasound, I know many don't. Where I am going with this, is I believe my females cycle off season, and I plan on breeding them in july, August and September this year. So, with that said, if you weren't sure on the follicles, I would watch them close. If they start laying cool, or goo off feed, they may be ready at any time. Just to be sure, I would put a male in with them at least once per month, and see if copulation occurs.
Hope that helps,