> Well, "they" say it brings in the milk,
I hate to say it, because even after all these years I'm still willing to learn, but the only thing that 'brings in the milk' is the puppies nursing! And fact is you don't want her to start producing 'lashings' or milk early days because newborn puppies don't really need that much and if too much comes down too fast, she could go to mastitis. Again, you won't know what she really needs until you see how many puppies she has! I panicked with our first litter which due to me being a complete novice, amounted to one live puppy and one DOA, and mum totally refused to eat - she knew best. She only had the one puppy and tons of milk. I'd read all the books which stressed that mum needed to be eating, a lot. Help!! If your girl has some more weeks to go and isn't tucking in, it could be because she's stuffed with puppies and has no room for a big meal. I backed off the bulk with my late-pregnancy bitches, concentrating on protein and offering it in several small meals a day.
As long as your girl has no nasty discharge and is just pregnant, I'd try not to stress - she needs you to be calm and now is the time to call in your mentor, and have your vet on speed-dial. I used to let them know as soon as labour began so if I needed them for a C.Section, they'd be ready.