If you do breed I would not keep a pup as the mom would be more dominate and pups don't reach their full potentioal.
We here on this board are a lot of rescue pet owners so we tend to get a bit touchy about small pet breeding. I have 3 rescued dogs now . I drove 4300 miles to get one of them that a pet talker had saved.I would not choose to breed (parents raised and showed springers when i was a kid ) never made any money at it actually lost most of the time.