Everything I've heard says keep pairing till they stop showing interest, lol. But that's really up to you. You said that you pulled your male the other day because he looks like he's drained of energy...well, if he's wearing thin, then it'd probably be best to go ahead and wait till next year.

But I'm by no means experienced, haha. I'm just parroting back what I've read other, more experienced people say. I'm sure they'll jump in with useful information soon!