Water exercise is a great way for pregnant women to release stress on joints and does not place strain on your body. So for water exercise or just fun splashing and swimming, Carriwell has designed an adjustable, super comfy maternity swimsuit. Water exercise is a great way for pregnant women to release stress on joints and does not place strain on your body. So for water exercise or just fun splashing and swimming, Carriwell has designed an adjustable, super comfy maternity swimsuit.