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What is a dog's heat cycle and how does it relate to pregnancy?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female

What does heat mean?? When n why do dogs get them? Is it when they are about to get pregnant??? Is there any relationship between heat n pregnancy?

1 Answer

Most Helpful Answer

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on June 21st, 2019

When a female dog is "in heat", she has entered the fertile stage of her reproductive cycle and is receptive to mating. The cycle lasts about 3 weeks and occurs twice a year in most dogs. In order for a dog to become pregnant, she must be in heat and bred by a male dog.

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