This is the hard part when it comes to breeding. I learned early on that everything I planned would almost undoubtedly not go the way I wanted it to go. Now I raise 3 females for any single project I want to breed in hopes that one of them will follow through. I have some amazing dragons that I spent big money on years ago that have never once bred. I still have hopes but they are pretty small right now.
You can put some females with some males and the female will dominate, yet you put her with another male and she will breed instantly. In any case, there are still females that will not breed to any male period or others that would breed to multiple males if you let them.
Then you still have to factor in a dragons physical ability to breed and develop eggs, what if she is past her follicle development and has already absorbed them? What if she, for some reason, has an internal disability and cannot develop eggs properly inside her? Dragons seem to have an awesome instinct of knowing what is going on inside their bodies and their brains tend to dictate their actions as a survival tool. For example, when a dehydrated or sick dragon will not eat, their bodies know it isn't physically possible.
As breeders, we learn to tell when a female is "receptive" and will accept a male. This timing is crucial in any successful breeding project. If you try too early or too late, she will reject the male and won't let him breed her. You can wait a week or two before trying them again, but even sometimes dragons will breed and not produce. You just can't expect a particular pair to always breed successfully.
Good luck! Cheryl