Pregnant or nursing dog moms need different nutrition than all the other dogs. Here are some things you should know if you have a pregnant dog:
The pregnancy lasts around 9 weeks. For the first 6 to 7 weeks you should not change the amount of food that you usually feed her. After that, you should start to gain some weight. Give her about 25% more food a day. Make lots fresh water available to her at all times! Do not forger that your dog still needs exercise; not as much as before, but she still is a dog with the needs of a dog.
What to feed: general commercial good quality dog food. Rule of thumb: you always pay for quality. The cheap dog foods at most stores is also cheap in nutrition! A minimum of 1600 digestible calories per pound of food and at least 21% of crude protein is a must. Read the label!!!!
If your dog tends to gain weight, measure her food intake. If not, give her all the food she wants. If she starts to lose weight moisten her food or try switching to a more nutritionally dense brand.
When the time of birth comes, she probably will stop eating all together a day or two before she is ready. If this is the first time for you and your dog, please consult a veterinarian and consider spaying your dog after this litter is weaned.