Not only would I NOT breed her cause of her weight, but do you know her background? I mean you don't just mate 2 cute Yorkies together and say oh ok here we go

Health, genetics , does anyone care about that?
I want to know the parents I want to see health testing I want references where my next baby will come from.
Like I posted I knew nothing of my dog's background and I have paid dearly for that , NO I love him and he will be with me forever, but you bet with my next baby I will be diligent and on top of things.
You just don't put 2 dogs together and breed them without knowing their backgrounds. Sorry, just the way I feel

Also when you buy from a reputable breeder there is a no breeding in the contract that you sign, most times, so why is that there if it's ok?