Former adult movie star JENNA JAMESON didn't know she was pregnant until a fake news report spurred her to take a test - which turned out positive.

Earlier this month (Aug08) a New York newspaper reported the 34 year old was expecting her first child with her partner, Ultimate Fighting Champion Tito Ortiz.

Jameson insists she wasn't pregnant at the time, but the story prompted her to get tested - and discovered she really was with child.

She tells PerezHilton.com, "Funny enough, that story was fake, but I just found out I am pregnant."

Jameson adds, "We're over the moon."