KEEP YOUR PRE-PREGNANCY JEANS: Extend your clothes, support your growing baby belly, and are a much more stylish, functional, and comfortable way to temporarily transform your favorite pre-pregnancy pants into maternity jeans. Maternity belly bands temporarily expand and add stretch to any waistband throughout pregnancy and postpartum. Our pregnancy belts extend your clothes, support your growing belly, and are a much more stylish, functional, and comfortable way to temporarily transform your favorite pre-pregnancy pants into maternity jeans. Made to stretch and velcro at a variety of settings, to allow a custom fit for all body types. While wearing your pants, measure the space between your two front belt loops for exact fitting.