My Cookies milk came in about 2 weeks ago and she is due anytime now, but some females wait until they are having they go into labor before the milk comes in, but usually it start coming in about 1-2 weeks before they give birth.
Some females carry the puppies up high in the rib cage and some carry them lower in the belly. My female is carrying her puppy/puppies low in her belly right above her hip I can feel a puppy. When is your female due? You could have an x-ray done on day 51-55, and they can give you a good idea of the # of puppies she is expecting. I like to wait until around day 55 because the puppies how up better in the x-ray.