Congrats on the lock and good luck to you this season. Like shadow120 said, you can keep pairing them until she goes. If they get to a point where they stop locking then she is probably bred. Then you wait for ovulation. Make sure to give them sufficient time off between locks and keep an eye out for either of them to go off feed. The male may just because it's breeding season and the female probably will when/if she starts building.