Kerri Walsh Jennings, ESPN
The three-time Olympic champion bared her bump for ESPN The Magazine's "Body Issue" in 2013. Jennings and her beach volleyball partner, Misty May-Treanor, won gold in the 2004, 2008, and 2012 Olympic Games, but for her, motherhood is the real triumph.
"I never worry about getting hurt on the court; as an athlete, you're hurt all the time -- injury is part of it," said Walsh Jennings. "Compared to the soul-shaking thing that is labor, everything else seems like mere flesh wounds. Having babies makes me feel like Wonder Woman."