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Updated on September 23rd, 2025
Pet's info: Dog | Labrador Retriever | Female | unspayed | 1 year and 1 month old | 150 lbs
My pregnant yellow lab that is one year old is very small for being close to her due date. She is pregnant from a 6 year old jack russel terrier. We are worried they might be stillborn or is it possible that they will just be small because of the mix in breeds?
2 Answers

Answered By Joy Fuhrman, DVM, MBA, CPA
Veterinarian
Published on April 18th, 2017
Answered By Lindsey Edwards MVB, BSc, IVCA
Veterinarian
As a general rule of thumb, pups will develop to an appropriate size for the mother, especially when cross bred with a smaller male. The biggest risks for difficult birth are breeds with large head/shoulders such as bulldogs, mothers with narrow/injured pelvis and single litters of 1-2pups where the pups are larger. All expectant mothers should be monitored closely during labor as difficulties can arise for many different reasons
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