Can I get these resources?
I've only hear of the mismatch shot being dangerous.
But you know what? I'm friggin sorry.
I'm friggin sorry for the owners even with the 'ok' from vets STILL lose their dogs.
I'm friggin sorry for what my dog had to go through from losing her pup. Would of it been nice to of had her offsprings? Yes, but I would never ever want to put through another dog the same heartbreak when she lost her pup from being born a STILLBORN.
I wouldn't want to breed my HUMAN child for MY need of an offspring, adding to the human overpopulation, because I want a 'baby from her'. We call them our furkids, yet we treat them different from our kids?
I'm friggin sorry for the dogs who die EVERYDAY in shetlers
Dogs In Danger who are just DAYS away from the needle.
I'm friggin sorry for going on
Petfinder.com: Adopt a pet and help an animal shelter rescue a puppy or kitten. and finding yorkshire terriers in urgent need of homes, because people weren't prepared for 'a litter that size.'
You guys say you want to improve the breed, but its ok for this person, who knows if they're going to do genetic testings to make sure these pups aren't carriers to the yorkie breed's health problems, to be allowed to breed?

I'm confused? Just because its for pet quality, doesn't mean we should prevent that chance? Because this dog has papers, its OK? What does a piece of paper have to do with anything?
I would
highly suggest that if you want puppies so bad you volunteer at a rescue organization and when they have a mama with a litter that needs to be fostered you take them and foster them. This will give you a great idea on how it is not all fun in games to breed and how unwanted puppies end up in rescue organizations all the time. There are too many good dogs dying already. Note I'm not saying you do, but suggest. So don't twist my words.
I'm friggin sorry I don't breed my dogs, so I can't offer an advice on this forum, because I'm naive from having experience to do so. Because of course I have to experience a bitch of mines dying before I can say yes the can die.
I've gotten the best information from pet owners who do their research on breeding. I would trust those sources more than I would from a byb. Some same points that I had gotten from pet owners I've also gotten from responsible breeders, but never heard of from byb.
I'm friggin sorry I'm scaring people from THE TRUTH. Life isn't all rainbows and sunshines. Sorry you had to hear that. I'm sorry that I friggin care to much about dogs in shetlers, this persons dog, and the issues I have with breeding for an offspring.
Sorry I can't voice my opinions on this forum, because it isn't something positive. I'm sorry I'm not going to sugar-coat something that could be
potientally dangerous. Not that it WOULD be dangerous, please don't twist my words.
Breeding isn't the world's safest things. Or am I wrong about that too? Because I'm not a breeder, so this would make whatever I say invalid to what breeder would say.
For the OP I hope your dog isn't pregnant and whatever you choose to do with your dog, I'm wishing for the best outcomes for our dogs and her possible pups. 
I bolded that, because sometimes people only read the negative and could give 2cents on what was said on a positive note. People are making me sound like I'm the bad person here........sorry I'm trying to be the voice for pound puppies, there sure isn't anything positive about that. I'm not wanting the worst for these pups, I'm wanting the best......but no one is seeing that, all they see is that I'm a puppykiller for suggestion to abort these pups.
Sure you guys might see the end of the rainbow, because you guys get to be around cute puppies being born...........try being on the other end of that rainbow putting down puppies that did nothing wrong but be born, but could not find homes in time.