
Are all her health tests in place.
What was her mother like in the whelping box, was she an easy whelper, good mother, and what age was she bred from.
What size litters does the female line tend towards and any whelping issues, C sections inertia etc.
With my breed this really would be last chance for a first litter, but they are a medium size (20kg bitches) of a usually natural whelping/mothering type.
How important is it to breed from this particular bitch, is she supposed to found a line, has she no sisters who have been bred from. Could you achieve the same ends by having a puppy from her breeder, say from a sister/Aunt, who I assume would have already been bred from?