Sounds like its working out..her follicles may be pretty small still but if she's accepting the male then that's a great sign. Make sure you continue to feed her regularly and keep the pairing going. Ovulation takes place sometimes months after mating. I notice most of my females ovulating after i raise temps in the spring, some of mine wait till the end of summer into fall before they ovulate. Just keep it going and make sure she gets plenty of food if she's still feeding and it will happen naturally