Why do you want to breed her?
To be totally blunt here, you are not going to get a lot of support on this forum with this breeding.
Most here are very passionate about our dogs as well as our breeds and seeing posts like this immediately get our backs up.
The ONLY reason that any dog should be intentionally bred, is to benefit and better that particular breed.
Breeding only dogs that fit into the standard and that will forward the image of the breed that the breeder is trying to achieve. That is after appropriate health testing has been completed, lines studied and risks assessed by the breeder. Who will in turn guarantee the health of those pups and be not only willing, but making it contractually obligatory to return the pup if for ANY reason the owner can no longer care for it.
What reason do you have to breed your dog? What health clearances are you prepared to do to ensure the healthiest pups you can? If those pups are to come down with some hereditary issue what are you prepared to do/give to those owners comfort for what they are going through? What happens if there is an issue during birth? Are you prepared to go to an emergency vet and pay the 3000$ for a C-section?
How are you planning on finding homes for these pups? Are you prepared to interview people, check their homes and back grounds? Are you financially prepared to have a litter? Whelping box, food, toys, Pay for their first and perhaps second round of shots? To socialize them correctly so that they are well adjusted when it is time for them to go to their new homes?
You will not make money off breeding, only risking the health of your dog.
My advice is to have her spayed, so you don't need to go through heat cycles every 6 months and enjoy your pet.
Oh and for your question, you shouldn't breed a female CC before 2 years of age minimum. They don't fully finish developing until 3, so let them grow up first.
