Such a loss is a sad thing to deal with, especially so close to your birthday, but your friend left you a wonderful birthday gift of the reassurance of the beauty and strength of life - a lovely litter of puppies. I know she is smiling, surrounded by her canine friends who were waiting patiently for her, watching you care so well for the dogs she loved so much in life.
I'm betting that you'll be keeping at least one of the puppies, as a beloved companion and tribute to your friendship, even if it isn't necessarily a dog you want to show or breed.