Puppies born 2 weeks premature die instantly.

You should be tube feeding these puppies every 2-3 hours, and otherwise letting them nurse the dam if possible. Even under weight bitches can provide good milk for puppies if they have the right nutritional support. Your vet can show you how to tube feed, and get you the right supplies to do so.

You can use commercially made forumula, or you can make your own.

1 can Meyenburg goat milk
equal amount of unflavored Pedialyte
1/2 cup plain yoghurt, whole milk if you can find it, low fat will do in a pinch
1-2 tablespoons white karo syrup
several drops of liquid baby vitamins

Warm the milk to 100 degrees. Use a digital thermometer to check the temp.

Crying is not good. Healthy puppies are quiet unless they are hungry or need to be pottied.