Laid back Amber

One reason the Ambers are so cool is that they are so darned laid back. Mine is so laid back that it's completely uninterested in breeding.
Of course, it could be that the female is not wearing her "perfume" yet. In fact, she fled from him the first time I put them together.
Is there any way to tell when a female is emitting pheromones, or otherwise ready for copulation?
They are both '02s, and that may make a difference with her, but shouldn't with the male, right? (Both are plenty large enough, in theory)