Senior Oh Baby! Fitness Instructor, Kathleen Donahoe, helps answer all the questions we get about stability balls and exercise during pregnancy: What kind of Stability Ball is best for me to purchase when pregnant? How do I sit on the ball properly? What kind of exercises can I do to relieve pelvic and low back pain? If you'd like more tips about safe pregnancy and mom & baby exercise, go to www.blog.ohbabyfitness.com