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My dog in heat got loose. How to tell if she mated or is pregnant?

Updated on September 23rd, 2025

Pet's info: Dog | American Pit Bull Terrier | Female | unspayed | 1 year and 3 months old | 50 lbs

How can you tell if your female dog who is in heat has had sex? Her vagina looks more swollen than usual. She got loose last night and i had to catch her so just making sure

1 Answer

Most Helpful Answer

Penelope Graben, DVM

Answered By Penelope Graben, DVM

Veterinarian

Published on September 28th, 2019

Hello,

It is not possible to tell if a dog has had sex. The vulva, or external female genitalia, experiences normal swelling during the heat cycle.
X-rays can be taken 45 days after mating to confirm presence of fetal skeletons.
I hope this helps. Thanks for using Petco Pet Education Center, formerly Petcoach.
Vote Icon4Pet Parents found this answer helpful

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