Simon Cowell is a proud dad-to-be! The X Factor judge is expecting a baby boy with his pregnant girlfriend, Lauren Silverman, and can't stop gushing about his future arrival. Though, he admits, finding out about the pregnancy at first was a bit overwhelming.

"Oh my God, this is exciting, and this is going to be a bit of a nightmare for the next few weeks," he said of his reaction to the baby news in a pre-taped interview with Ellen DeGeneres set to air this week. "It was kind of uncomfortable. You know, the situation," Cowell, 53, admitted. 

Indeed, Us Weekly first reported that the British TV personality was expecting a child with Silverman while she was still married to -- though estranged from -- Cowell's friend, Andrew Silverman. But since the baby bombshell, the pair have settled their divorce.

"But these things happen and everything is kind of calm now and I'm happy," Cowell added. "I'm actually happier than I've ever been."

As for his relationship with the New York socialite, 36 -- already a mom to 7-year-old Adam -- Cowell says the way she has been portrayed in the media is absolute rubbish. "There was a lot of stuff said about her, that she trapped me and that she's a gold digger. Absolute nonsense," he said. "She's a great girl."