I hope the pups will be on a limited registration and that good homes that will spay/neuter will be the emphasis (and NOT price .. these are pups coming from non-proven, non-health tested stock and therefore do not warrant a high price in any way).
An "oops" simply means "I wasn't paying attention at a time when I should have been" .. and in this particular situation, all the signs point toward this being a deliberate breeding anyway.
You know what frustrates me even more than anything else? Even with all the dogs in shelters and rescues, there's a place for responsible breeders out there. There's a place for breeders who are doing their best to breed quality dogs from breeding stock that is proven to be genetically healthy, conformationally correct, intelligent and excellent examples of the breed. You could have tried to be one of these breeders, but instead you made the choice (and it WAS a choice) to just breed two dogs that happened to have registration papers. THIS is the type of breeder that makes people dislike breeders.
And if this HAD been an "oops" .. a responsible breeder would have said "okay, I've made a mistake but I still want to be responsible .. my dogs have not completed the qualifications to be worthy of breeding and it is completely wrong to bring puppies into the world until then .. so I will go the vet and get the mismate shot and then make D*MN sure not to make this mistake again".
Yep, that's what a responsible human being would have done.
I do hope your bitch does well with whelping and that everything goes fine. I'm sure no one wishes you ill in any way. But what you have done was completely WRONG - you KNOW it too - and if you came here thinking people would say "oooooohh, PUPPIES!!" then you're wrong in that too.
Please, make sure you find the best of homes, have spay/neuter contracts, only offer limited registration so that no offspring of these dogs can be bred, and make money the LEAST of your considerations in selling these pups.
And then get your dogs health-tested, get some titles going, either have your bitch spayed or put her on cheque drops to keep her out of heat, and make an effort to show that you are willing to be RESPONSIBLE.
Melanie and the gang in Alaska