Okay...not getting involved in the fight that this thread has turned into.
All I had to say was to remember that a dog's gestation length is 63 days from OVULATION. Counting from dates of breedings are only an estimate because a dog can tie many days prior to and after the actual ovulation date.
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~Magnifique Yorkies~
Purchasing from backyard breeders, pet shops, and puppymills perpetuates the suffering of other dogs.
Educate yourself and buy from reputable breeders or rescue.