Hi there. Our American Bulldog Male and American Bulldog Lab mix Female just had their first litter of 10 pups 9 days ago. They are all feeding and doing really great. I am a bit concerned with the runt of the litter. She feeds well and fights hard for a spot to feed off mama every time, but she is pretty much the same size as she she was born where the other 9!are definitely getting bigger. Any advice on how to make sure she continues to grow strong and bigger please! This is our first time raising pups so all advice is greatly appreciated!