Pregnancy child's pose side flexion with stability ball ("Child's pose" Shoulder/trunk extensors stretch, with side bending, kneeling behind stability ball; 01)

Kneel down in front of a stability ball.
Place your hands onto the side of a stability ball and turn both knees out slightly to the side to allow space for your pregnancy bump.
Take the ball to one side.
Slowly sit your buttocks back onto your heels or as far as you can go comfortably, while at the same time stretch your arms out as far as you can go.
Hold this position, and then repeat on the other side.