It is hard to tell when they are young. I don't really see any pit bull in her though. A red nosed pit is not a breed. Including a nose description (blue or red) is not part of the actual breed name. Just because a dog has a parent with a certain nose color doesn't mean they will inherit it.
Maybe a shepherd mix? Again hard to tell with them being young.
Is the tongue have any purple(blue) spotting or color to it? Sometimes chow mixed will have some of the color of a chow's tongue.
He is cute no matter what he is