Personally, I don't think they are big enough to breed. At least get the girls over 50.... at least. I like my girl to be over sixty, but that is just my personal view. The male should be old enough to breed, but you also have to factor in their age. Good Luck!
I have a female that was 59g when she was breed and her weight dropped down to 44g. Egg laying takes it's toll so I would make sure the female is close to 60g and healthy before breeding. My female bounced back up to 48g yesterday so I think she's going to be OK. The vet gave me some Avi BOOST in case her weight keeps falling...