Eating a healthy diet isn't only important for you, but your unborn child as well. During the second month of pregnancy, a baby's teeth begin to form. By eating a healthy and balanced diet you can help develop healthy teeth for your baby. A healthy diet would include getting the right amounts of protein, vitamins A, C and D, and minerals like calcium and phosphorous. If you do not get enough of these nutrients, your child's tooth enamel may not develop normally. This also may make your child more prone to cavities in the future. During pregnancy, women feel hungry between meals. Even though this is a normal urge, snacking on sugary foods can invite tooth decay. Choose healthy foods when you need snacks between your meals.