
At 8 and a half years old I'd be more concerned about the health & welfare of my bitch & if she was fit enough to carry a litter & rear them, than if I could register them.
However she obviously has been mated now & unless she goes for a misalliance jab soon after the matings there isn't much you can do now.
Please ensure you keep her excercise up during her pregnancy to maintain her fitness & minimise the chance of problems during whelping.
Good luck. :)