Actress Uma Thurman has sparked reports she is pregnant with her third child--after she was photographed with a protruding stomach. The Kill Bill star announced last month she is set to marry Swiss businessman Arpad Busson, whom she has been dating for a year. And new pictures of the 38-year-old in a bikini while vacationing on the island of Corsica this week have aroused reports she is pregnant, according to the New York Daily News. A spokesperson for Thurman is yet to comment on the reports. Thurman has two children, daughter Maya Ray, 10, and son Levon Roan, six, by former husband, actor Ethan Hawke.