i have 2 brindles with head spots from a recent litter of mine that im going to breed together soon. they are 5 weeks old right now. im really hoping for some good broken brindles! im just not sure at what age i should breed them. i know that females have breeding problems if they get too fat. so at what age should i breed her? 10 weeks? 12 weeks? sooner? later? i just want to make sure that i can get her pregnant!