Holly Madison on July 2, 2012 in Las Vegas, Nevada. Credit: Denise Truscello/WireImage

Holly Madison is going to be a mom!

The former Girls Next Door star and Playboy Playmate tells the new Us Weekly, out now, that she is expecting her first child with her boyfriend of nine months, Electric Daisy Carnival founder Pasquale Rotella, 38.

"I've always wanted to be a mom," Madison, 33, tells Us. "But I thought it would take longer!"

So far, the thrilled mom-to-be, who is now 12 weeks along, is feeling good in her pregnancy.

"I've been lucky! No morning sickness, but I do get a little nauseous," the star of Las Vegas burlesque revue, Peepshow, says. "It happens before my show, so I keep ginger ale backstage."

For more of mom-to-be Madison's interview about her pregnancy -- and how Rotella reacted to the news -- pick up the new issue of Us Weekly, on stands Friday!