I have a 7 month old buck. I was hoping he can breed by now.Is he old enough???I read you have to seperated your boys from the mother around 8 weeks old . Because of this reason. SO i thought a 7 month can. He dose all stuff. JUst the girls are not getting pregnant by him. I was thinking maybe he is a dud. He has both of his testicles. HOw much longer should i give him before i replace him......?