I just want to reassure you that you are not missing out on training. I know and understand that you are very anxious to get your new puppy. I also understand your frustration in saying it is the other 2 that are having low blood sugar.
Sometimes the waiting part is so incredibly hard for us. I had to wait until Annie was 5 months old. Before I could go and get her. But you know what? I am so glad that I did.I would not change a thing. Was I anxious? YOU BET! Especially when other YT members had actually gotten to see and hold her long before I did!
Annie is very healthy and very attached to us. Bonding was not an issue. She uses her piddle pads just fine. You know that yorkies are notorious for being down right difficult to house train. Some get it right away,others no, some go through cycles where one day they have it, and the next day they don't!
So hang in there. I would be more concerned about a breeder that was unattached and did not care and released a very small baby. Keep in mind also that this breeder is racking up vet bills on these pups because she cares:p

During my 3 month waiting period I spent a lot of time re-educating myself on the breed and learning about the different health issues that can and do affect yorkies.

I hope this helps you, it is in no means, meant to hurt or offend you.

Btw we will all be here cheering you on when you get the date when you can finally go and get your new bundle of joy.

The breeder/vet should hang on to the puppies a little longer atleast 4 more weeks. If the pups are having problems then it would be best for them to stay with thier mom. you dont want to buy a sick puppy and then it die on you. wait a little longer and let the pups get stronger. The breeder/ vet should know that.