Chest Opener - Simply love this one for releasing the muscles of the chest, front of shoulders and the spine. Begin lying on the side, head on a cushion with one hand stretched out on top of the other. Sweep the top arm towards the ceiling and behind the body towards the floor, keeping it straight. Stop when you feel the stretch and return, repeat for however long it feels good. Repeat on the opposite side.
Give these releases a try several times per week and feel the benefits that regular stretching of your muscles can bring to your ever changing body during pregnancy.