The 8 rules of pregnancy nutrition

According to the March of Dimes, for most women it only takes 100 to 300 extra calories a day to support their baby's growth.

Those calories should come from healthy foods from the following five food groups: fruits, vegetables, grains, proteins and milk products.

Eating for two shouldn't cost twice as much. Moms-to-be can eat healthy and keep grocery budgets balanced, too.

At the store:
Compare prices between store brands and name brands; some store brands cost less and have the same nutritional value.

At home:
Have staples on hand, including beans, rice, pasta and peanut butter. Drink lots of water, filtered from the tap - drink at least 64 oz. water per day as this helps prevent constipation (a common problem during pregnancy).

Another way to save money is to replace meat with beans, lentils, nuts, or soy a couple of times a week.

Healthy snacks:
* A couple of whole wheat crackers with peanut butter, a small glass of low fat milk and a small apple.
* Small yogurt with a handful of granola and a small orange.
* One cheese stick, a handful of walnuts, a few strawberries and a stick of celery with peanut butter.