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Is my small dog pregnant by a larger dog? Bloated, engorged nipples.

Updated on September 23rd, 2025

Pet's info: Dog | Toy Poodle | Female | spayed | 1 year and 2 months old | 4.5 lbs

Luna was in heat during January and we live w a 15lb male poodle. Is it possible for her to get pregnant by the big dog? She's done w heat but is heavier and seems bloated w engorged nipples. though since and during heat her appetite increased. she is only around 4lbs normally. Now she is heavier.

1 Answer

Most Helpful Answer

Dr. Melanie, BVSc MS

Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on February 4th, 2017

Yes, it is possible that Luna is pregnant, as any size dog can get another dog pregnancy. It is concerning that she has mated with a much larger dog, as that leads to bigger puppies and more of a chance of difficulty during labor. I would have Luna seen by a vet as soon as possible to diagnose if she is pregnant, and I would start preparing financially for the possibility she may need a c section to safely deliver her puppies. Toy breeds have higher incidences of needed c sections due to their small stature, and her being mated with a larger dogs increases the chance as well.
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