Ana Ivanovic

Former Serbian tennis ace Ana Ivanovic, who is pregnant with her first child, still makes it a point to keep herself in shape. Ivanovic, who announced in November last year that she and German football star Bastian Schweinsteiger will become parents, took to Instagram to share a picture of herself after a session of yoga. "Loving my prenatal yoga," she wrote recently and also attached a picture of herself wearing a loose t-shirt. Prenatal yoga is known to be of great help to pregnant women.