Old Navy offers Halloween maternity shirts in the latest trends, vibrant colors and fashionable designs. Our selection of maternity Halloween shirts are comfortable, and fit as if they were made for you. Having a baby bump is no reason to miss out on the Halloween fun, and you will be in for a "treat" when you discover the amazing prices of our Halloween shirts for pregnant women. The prices are so good that you will think you are playing a "trick" on Old Navy. If you have been wondering what to do for Halloween, our Halloween maternity shirts are the answer!