The basics can be plenty of fun, too. Jeans, for example. Only a few years ago, maternity jeans would never be confused with "real" jeans—they were more like denim-toned polyester leggings. Thanks to the advent of stretch fabrics and low rise styles, jeans can be as much of a sexy staple during pregnancy as they were before. "There are so many great denim lines out there these days," says Lange. "I think women really want a great shape, a cool wash or color, and a comfortable panel up top." She notes that sexy jeans can be found in all price ranges—and even the premium denim brands are making maternity clothing.