Female Heart murmur

Question
I have a 7 month old female chihuahua with a heart murmur. She is pregnat by her brother. Can she have the puppies and will she and the pups survive?

Answer
Hi Diane

Three things in this bother me a) she's 7 months old, b) she has a heart murmur and c)she was bred to her brother.

7 months old is very young for a female to be bred regardless of the breed.

She may have outgrown the heart murmur but she should have been spayed as this is typically a genetic condition.  

Doing a inbreeding on a dog with a hereditary problems to another dog from the same lines is going to guarantee you off-spring with health issues.  

You need to discuss with your vet if your female's heart is strong enough to survive whelping or surgery as she may require a c-section.   If the female or any of her pups survive, they should all be spayed or nuetered and sold as pets only.  

Good luck