Abstract: A support undergarment for use in supporting the body of a woman during pregnancy, especially during the last trimester of pregnancy is disclosed. The undergarment comprises an elongated back panel that extends substantially from the shoulders to the waist of the wearer for supporting the back of the wearer. A first pair of torso encircling straps extends from the opposite sides of an intermediate portion of the back panel. Each torso strap includes a brassiere support cup with a releasable fastener between the cups. A second pair of adjustable straps extends from the opposite sides of the upper portion of the back panel over the shoulders of the wearer. Each shoulder strap connects to one of the first straps adjacent its associated brassiere cup. A third pair of adjustable straps extends from the opposite sides of the lower portion of the back panel and adjustably connect with an abdominal support sling which encircles and supports the lower abdomen of the wearer.