 can take steps to give their baby the best health possible. Expectant mothers are prescribed prenatal vitamins and encouraged not to smoke or drink, but you don't have to be pregnant to begin preventative measures. In fact, about half of pregnancies are unplanned. So, if you are a woman who thinks a baby could be in your near future, consider taking a multivitamin with folic acid now, maintain a healthy weight, and reduce your alcohol and tobacco intake.