The dog had to get in the shelter, but she refused to go. It turned out that there is a hidden her puppies. They would have died without mom. First, you will need to feed and water the mother of the puppies.
Bring her bowls to the box with newborn because she may not want to leave their children. Don’t place the bowl on the bottom of the box with kids, because those are for him to crawl. You can hang the bowl on the side of the box or to offer the mother food and water at least every 2-3 hours.
Regularly for a short time, the mother go out to the toilet. Puppies need to be fed milk every 2 hours. If they suck milk until their bellies will not be rounded, and then sleep, so they eat enough.