There are many reasons why your dog could have stomach swelling. Your dog could have a twisted stomach for example.
call the vet
When it get swollen it might be that she is pregnet
I can't think of what it is called but its when the stomach does a turn and food cannot get in or out of stomach,its serious, call your vet ASAP
Because she has just undergone major surgery and anybody would be a bit swollen. If it lasts more than a couple days you should ask a vet.
The teats should not be swelling at all after being spayed unless they were swollen before the surgery. You need to take your dog in to be checked out by your Veterinarian as soon as possible.
Your gonna have to feed the pups yourself if you don't your pups will die. If the dogs breast are swollen then your dog is sick.
when the stomach looks swollen or a little red and a little fat
I had a dog who went through this, it was an accumulation of fluids. The surgery was properly poorly done, take her to the vet, she might have an infection as well.
Spaying is the removal of the ovaries from a female dog. No dog that is spayed can have puppies. No female dog can have puppies with another female dog. If you are asking about a male dog, the correct term is neutered, not spayed.
As long as the dog passes a veterinary exam, there's nothing wrong with adopting a dog that was being used for breeding. You should of course, have her spayed.
I don't know about the licking urine - but if your dogs stomach has swollen quickly call the vet right away! It could be bloat which is quickly fatal without treatment.
If the dog is not spayed then it is most likely certain the dog is in heat. This is stage one. In just a few days she will start to produce a red discharge, this is stage two. When the dog stops producing the discharge she is in stage three and is ready to mate. It is important not to mate a dog till her second heat!! It is detrimental to her health and her offspring.