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Does my large dog's size or litter affect her pregnancy duration?

Updated On September 23rd, 2025

Pet's info: Dog | Newfoundland | Female | 150 lbs

Will an xxxl dog go the full 64days if carrying a large litter?

1 Answer

Most Helpful Answer

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Answered By Dr. Strydom, DVM

Veterinarian

Published on August 30th, 2017

Dogs have the same gestation period no matter what their size or the litter size. Average is 63-65 days. There is no way to know if she will deliver early, late or on time. You will just need to monitor for signs of impeding delivery as that will give you the best idea as to when to expect the puppies. Hope this helps. Best wishes!

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