My Shih Tzu is pregnant by a big dog. Will she survive delivery?

I would strongly suggest to keep her monitored during pregnancy as c-section may be needed to deliver the puppies. Radiographs at 40 days of pregnancy will be very useful to assess the size of the puppies and make sure they can be naturally delivered. Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further.

Hello, I’m not sure if there was supposed to be a photograph of the male dog attached to this post or not. If you have a large male who breeds with a small female, there is always a concern that she will not be able to have the puppies and will need a C-section. Any small female dog who is having puppies should have radiographs done after day 45 to see how many babies are expected. If you do not want her to have a litter, I recommend calling the veterinarian and discussing getting her spayed ASAP. Some dogs can have a shot to stop the pregnancy but there can be some serious side effects to that. Getting her spayed will eliminate an accidental pregnancy in the future. Getting her spayed also has other health benefits and is recommended for any dog not intended for breeding. I hope this helps and please feel free to post any additional questions!

No this isn’t entirely correct. She does however have a greater chance of needing a C-section if the puppies end up being bigger than her birth canal. Which is why it’s best to have her examined by your vet and radiographs taken to look at the size of the fetuses. If they are too big to pass, then a simple C-section can be scheduled for the Mama dog. I hope this helps. Best wishes and take care.

Pregnancy complications really depend on how large the puppies are and how many she is carrying. It is best to work with your vet for regular checkups to confirm the pregnancy, and an X-ray as it gets closer to Riley's due-date to check on the size and number of puppies. Your vet can then recommend if a C-section is needed. Signs to watch out for during labor that may indicate dystocia (difficulty giving birth) include straining for long periods without success, a visible puppy stuck in the birth canal, or no puppies produced after several hours of labor. These are all signs something may be wrong and that Riley should be brought to the vet for care.

Hi, thabks for using Petco Pet Education Center, formerly Petcoach! The size difference may or may not be a problem. If her litter is large the puppies will be smaller. If she only has one or two she’d be at more risk for needing a c-section. I would have your Vet take an X-ray at day 50 to confirm pregnancy and to count puppies. Write down the date she was bred. Dogs are pregnant 60-63 days. Starting at day 55 start taking her temperature daily rectally. Stage 1 labor tends to start 24 hrs once the temperature drops below 99 F. But your Vet can help you and go over concerns once we know she is pregnant and size of the litter. I hope this helps and good luck!

Yes, it is possible that Luna is pregnant, as any size dog can get another dog pregnancy. It is concerning that she has mated with a much larger dog, as that leads to bigger puppies and more of a chance of difficulty during labor. I would have Luna seen by a vet as soon as possible to diagnose if she is pregnant, and I would start preparing financially for the possibility she may need a c section to safely deliver her puppies. Toy breeds have higher incidences of needed c sections due to their small stature, and her being mated with a larger dogs increases the chance as well.

Both chihuahuas and pugs are high secton risks - your vet may be able to advise further depending on her frame and width of pelvis but if you do not wish to breed her aborting the litter or neutering may also be possibilities.