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Pregnant dog symptoms: When will she give birth if mating date is unknown?

Updated On September 23rd, 2025

My border collie is pregnant her breast are very swollen especially the ones by her hind leg, huge appitite, no energy and large tummy. I want to know when she might be giving birth. I do not know when they mated

1 Answer

Most Helpful Answer

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Answered By Dr. Leigh, DVM

Veterinarian

Published on December 13th, 2016

It sounds like she is getting close. You can use her body temperature to help predict whelping. Your dog’s temperature should be between 101 and 102.5 F. When her temperature drops below 100F she should deliver the pups within twenty-four hours.

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