My dog just had had 7 puppies. She is a lab,pit mix. The father is a Stafford pit. The puppies are 4 weeks old and we are going to start getting them eating puppy chow that's been watered down. But she has been losing weight. A lot of weight. Its kind of scary. She's losing weight and she's looking paler than usual and it scares me because its just not healthy. So does any one know how to get my dog to start gaining weight. Please help!!