An Australian tabloid is claiming that “Twilight” heartthrob Robert Pattinson has knocked up his onscreen and rumored real-life girlfriend, Kristen Stewart.

An “insider” quoted by Australia‘s  New Weekly says, “When [Stewart] worked out she was late, she obviously started to thinking that she could be pregnant. And because of the timing, she thinks Rob could be the father.”

The gossip mag also reports she had a friend buy a home pregnancy test for her, and that she is “very nervous about the whole situation.”

The article is accompanied by a photo of Stewart with a tiny round belly protruding from her pants on the set of her upcoming film “The Runaways,” in which she plays rocker Joan Jett.

While the pregnancy story is making the rounds on the Web, reps for Stewart and Pattinson have not confirmed whether there is any truth to the New Weekly’s report.

Read more: http://www.nydailynews.com/gossip/2009/07/07/2009-07-07_believe_it_or_not_kristen_stewart_pregnant_with_robert_pattinsons_child_claims_a.html#ixzz0KcOaYOTc&C