Caring for the runt of the litter?

No milk ever to cat or kittens. It will give them the runs. Keep an ear open to the kittens meows. If they are constantly meowing and looking for milk on mom it means she can't produce enough to feed them. You may have to do the nursing with a dropper with a kitten milk found in a pet store or large pet supply department in a store. You burp the kittens by rubbing their backs, and use a warm moist rag to wash their bottoms to get them to eliminate. Keep mom well fed with moist or dry food and a big bowl of water near by. She sounds like she knows what she is doing. Still remember a constant meowing kitten means something is wrong.