CONGRATULATIONS! They are adorable!
As far as spaying affecting the milk - it definitely could. When Rosie had her C-section I requested that she be spayed at the same time and my vet refused saying that by doing so, she may not produce enough milk to feed the puppies, because of the hormones (or lack thereof, after being spayed). So I would recommend that you keep a close eye on their weight, and if they are not gaining a little bit of weight (.5 oz) every day or so, to bottle feed them. And if they lose any weight at all, that is not good - make sure and supplement feed them.
As far as the little girl - keep a close eye on her. My vet told us that mamma dogs may lay on the puppies that the see as "weak" - it is their instinct to not allow puppies to survive that may have a weakness to them. However, we have SOO many things in our modern day to assist puppies, that I have never been in the camp of "let nature takes it course" - I am a fighter for all puppies so I would definitely watch that one to make sure the mom doesn't suffocate it.
Also, and you did not ask about this, but make sure that Kiley (?) is cleaning them. Again from experience
we almost lost a puppy because until they are several weeks old, they need to be stimulated in order to urinate or pass a bowel movement. Rosie wasn't very good with this on her puppies and so I ended up having to help with this a couple times a day. (For anyone who needs/wants to know how to do this - just dampen some cotton balls with warm water and wipe their behinds until they do their business. this mimics what the mamma does by licking them until they go....)
Keep posting pics - makes me want to have more puppies!!!!
