Hi, Just now I was tickling Bess's belly, and something I have never noticed before, her nipples were slightly bigger at the base. Now I know this happens when a dogs has milk in her teat, so -an i know its disgusting - I squeezed one of her teats and white stuff came out, not like milk, but almost gooey and grey. We mated her last year in June, but she had a phantom. Does anyone know what this could be? Thanks.