There are some familiar names like Michael Phelps, but other are ready to become stars.
The three-time Olympic gold medalist in beach volleyball is gearing up for the 2016 Summer Games in Rio while raising three young kids.
After winning a gold medal at the 2008 Games in London, she gave birth in April to her third child, a girl named Scout Margery.
These eight competitors continued dominating their respective sports after giving birth.
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