
This is our punishment for getting her pregnant! They do it to worry us to death. I had one bitch that I felt sure would be skin and bone by the time that the pups arrived, but she was fine.
I always try to tempt in any way I can just as you are doing. Hand feeding if necessary! Remember that she could also feel uncomfortable by the way pups are lying, making her tummy feel full.
Not to worry you, but the next step comes once your bitch has whelped. You will then look like a zombie from lack of sleep. Oh, and did I tell you - your hair starts to turn grey.