I have read of people having their pregnant bitch X-rayed to find out how many pup's there are, it is not something I would wish to do.
Just weighed the pup's. They are all thriving, with a good increase of weight. Nelly is being very spoilt, being hand fed in her whelping box, an array of different foods. Today she has had Lamb kidneys, Egg with goat's milk, 1 chicken breast, and that is just her breakfast!