Before breeding her, make sure her AKC registry is correct, she is OFA certified, and has been tested for Brucillosis. Make sure that you have the emergency finances to pay for a c-section if it becomes necessary due to her somewhat advanced age. You should also budget for the puppies’ first visit to the vet for a health check, deworming and vaccination. (Additional sites for breeding information here: (http://www.woodhavenlabs.com/breeding.html).
Consider carefully what your reasons are for breeding her before you do so. Intentional breeding should be an effort to improve the breed – if you just want to have some puppies around, plan to make some money, whatever – that’s not an adequate reason. Please be a responsible pet owner.