Fact or Fiction: Is Serena Williams Pregnant?

(Dimitrios Kambouris/WireImage.com)

At the beginning of last month's U.S. Open tennis tournament, rumors began to swirl that Serena Williams, 25, and her longtime boyfriend, Jackie Long,were expecting. Serena's dad, Richard, no stranger to controversy in the tennis world, added fuel to the fire when he tried to explain his daughter’s subpar performance against Justine Henin in the quarterfinals. “Serena has a few problems that we haven't talked to no one about," Richard told reporters, refusing to go into more detail. “I think she's done a marvelous job of hiding it. Extremely marvelous."

So... what's the truth? Is Serena the Christina Aguilera of the tennis world? Well, if you believe her rep, who tells OK!, “Serena's not pregnant,” it's probably best to hold off on sending your congatulations cards... for now.

By Alisandra Puliti