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My dog mated and has milk. Is she pregnant? When to prepare?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female | unspayed | 8 lbs

On dec. 25th i found my two unfixed dogs knotted together (he knotted three seperate times in her) my female dog looks a lot bigger now and when i squeezed her nips, milk came out....what are the chances shes pregnant? She never wants to be in my room(where the male dog sleeps) but insists on coming in and sleeping under my bed. The first picture is about 3 weeks ago, the second picture is 3 days ago. Would now be a good time to make her a whelping box and feed her puppy food if shes pregnant?

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Answered By Laura Johnson VMD

Veterinarian

Published on February 8th, 2018

Hi, thanks for using Petco Pet Education Center, formerly Petcoach! Yes, if Princess tied 3 times she is very likely pregnant. Based on your pictures her belly and mammary glands are enlarged. Milk can show up as early as 1 week before labor to right before. Dogs are pregnant 60-63 days so if 12/25 was when you saw them tied then I would expect her to be due 2/22. You can schedule an appointment with your Vet soon to have an X-rays taken to confirm pregnancy and the number of puppies. I would get the whelping box together and start puppy food. I hope this helps and I wish you and Princess the best!

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