BRITNEY SPEARS is reportedly pregnant for the third time, and the singer is confessing all on a private MySpace page. According to American magazine Star, someone claiming to be Spears made the revelation on the social networking website. The site includes private family pictures of the star and her family and a sonogram dated 14 November (07), as well as a message that reads, "Yes, I am pregnant and I am shocked, almost 4 weeks to be exact. I don't really know if I'm happy or sad. I am happy I guess. I saw the ultrasound and it was really kewl (sic)." It also includes a reply, purportedly from Spears' sister Jamie Lynn, that reads, "No, I didn't tell mom cuz I think it would be better if you did. I really hope it's a girl." Meanwhile, In Touch Weekly magazine magazine is reporting producer J.R. Rotem is the father. The publication features new photos clearly showing Spears with what looks like a baby bump.