What I do with puppies is, I put a little piece of rick rack around their neck. Yarn gets too stringy. The rick rack works pretty good, and that way I can tell them apart and keep track of their weights. I use a notebook and write it all down.
Again, if the puppies are gaining weight, the dam is doing good.
So each day, twice a day, I will pick up each pup, look at the umbilical area, and check under the tail -- I just want to make sure Mom is doing a good job of keeping them clean. Then I weigh the puppy and check the rick rack to make sure it is not too tight, or too loose. I like to be able to get a finger under neath it. Then I give it a pet and play with the paws, and set it down next to the
I pick them up and put them in a box when I go to clean their area.
And watching puppies is almost hypnotic or addictive. Sometimes it just cannot be helped, and one must pick one up and rub it up under one's chin and let it lie on one's chest, warm, and breathing softly.
For the first week or two, this is plenty. It is good your husband is a dog person because that will be helpful too, to have people of both sexes handling them.
As for the kids. The dam is young and you have not had her long, so be cautious with them. I would it your child on the floor outside of the puppy area, and hand him a 2.5 - 3 week old puppy. Let him pet it gently. Then you pick it up and put it back in the box.
I may have photos:
When puppies and children are a little bigger, they can take more: