In short and long lengths, and in sleeve lengths to fit all seasons, maternity cardigans are sure to be a staple of your pregnancy wardrobe. Of all the maternity sweaters in your closet, maternity cardigans are easily the most versatile because you can wear them over virtually anything. Can't decide what sleeve length works best? Stick with 3/4 sleeve maternity sweater cardigans to maximize your wardrobe potential.