If you plan on getting Simon Cowell and baby mama Lauren Silverman a shower gift, stock up on blue -- they're having a boy!

"He is over the moon to be having a son," a source told the New York Daily News.

One thing he's not over the moon about? Changing diapers! He told the BBC (via Us Weekly), "I'm not doing that, 100 percent absolutely not going near that!" He's also not looking forward to losing his beauty sleep, lamenting, "Can't I just get a nanny?"

But don't be fooled by his dismissive commentary -- Cowell is a softie. "You literally see this thing which is now alive moving around," Cowell gushed to the Times of London about a recent ultrasound. "I feel very paternal right now. So I am very happy."

Still, Cowell promises his work won't be affected by his newly mushy state. "I can assure you: I won't go soft."

"I am good with kids because I like kids. I really do like them and I listen to them," the 'X Factor' judge assured. "Once I got used to [becoming a father] I did get excited. I think I will be a good dad!" Yep. As long as the kid never poops!