Linda,
Sometimes bitches can have a false pregnancy and have all the signs of being pregnant. How far along is she now? Have you taken her temperature? Are you noticing any discharge at all? I have had both pregnant and non-pregnant bitches that have acted like you are describing. If she is running a temperature, I would be concerned about a pyometra which would need to be treated ASAP. Do you have a good reproduction veterinarian that you can go to. An ultrasound would confirm this. Pyometra can be treated medically without having to spay them. Keep me posted.
Sandi
