Right now I have three 4 week old puppies that I've had for about week. They aren't with their mom anymore because with their previous home 3 of the puppies got killed by a coyote. And the mother stopped taking care of the other 3 so I decided to take care of them. I took them to the vet yesterday for a check-up to see if I was doing good. And he said they were healthy with no problems. Anyway they are 4 weeks and they walk around the room. But they still eat and sleep most of the time. Is that normal for their age should they be playing with each other and stuff yet. Also what age should I start potty training. They can use the bathroom on their own, when they have to go they get out of their bed and use the bathroom and go back to sleep or if they are hungry start whining for some food. So I was wondering what should I be doing with them at this age because they got no mom so should I just continue feeding and putting them sleep. Or should they be doing other things? Also when should I start weaning and putting on puppy food.