The singer eloped with musician-producer The-Dream – who handled most of the production duties on Mariah Carey’s latest album, Memoirs of An Imperfect Angel, in Las Vegas last month.

“My husband and I are expecting. We’re about four and a half months along, about 19 weeks. We’re really excited,” Christina told PEOPLE at the MGM Grand on Friday night.

The-Dream already has three children with former wife Nivea.

Less than two months after the 27-year-old “Dip It Low” star confirmed her engagement to the father of three, the two wed as the clock struck midnight Friday morning at Las Vegas’ Little White Wedding Chapel — the same spot where Britney Spears married childhood sweetheart Jason Alexander in 2004.

Christina — who previously dated hip-hop producer Dre and Mr. Mariah Nick Cannon — is reportedly pregnant with the couple’s first child together. The-Dream was previously wed to R&B singer Nivea.

According to EgyptSaidSo.com, the “Dip It Low” singer — is rumored to be expecting her first child with producer fiance The-Dream, who already has three children with ex-wife Nivea.

(In related news, Nivea is currently seven months pregnant with Lil Wayne’s fourth child. Babies, Babies, Babies. EVERYWHERE!)

The formerly blonde Christina is currently in New York City promoting the release of her straight-to-DVD teen comedy Bring It On: Fight To The Finish next month.

The hitmaking producer recently presented Christina with a six-carat ring from Ivanka Trump’s jewelry line, Us Weekly has learned.

“We just want to have our closest friends and family there; it’s not going to be too big,” Christina, 27, tells Us.

The-Dream — who already has three children with former wife Nivea — tells the publication that the pair are planning to have kids of their own. “I love kids, and [Christina] loves kids probably more than I do,” he says. “You have to do your work — then whenever she makes that time for herself — she’ll make that time [to have a baby]. In the next couple of years, there’ll be something around.”

Christina Milian’s longtime music video director Ray Kay has confirmed that the star is engaged to marry R&B singer/producer The-Dream.

Christina — who previously dated Mariah Carey’s husband, Nick Cannon, who has been romantically linked to the “Umbrella” songwriter since February — sparked rumors that she was heading down the aisle with The-Dream after she was spotted wearing a diamond ring on her wedding finger.

Last week, Kay let the news slip after joining the couple’s friends and family at the Palms Resort and Casino for an engagement party on Friday.

“I’m at Christina Milian and Dream’s engagement party in Vegas,” Kay Tweeted for the event.

This will be the second marriage for The-Dream. The producer’s marriage to singer Nivea — with whom he has three young children — ended in late 2007.

Christina Milian took her “Will Fuck For Tracks” campaign with rapper-producer Terius Young Nash, aka The Dream, to the tropics over the weekend. The couple are currently on vacation in Maui, Hawaii.

In the entry entitled “Hey Guys! I am not Engaged….,” the “Dip It Low” singer writes:

Good Morning y’all.

HA! ha!

The-Dream and a bleach-blonde Christina Milian stopped by BET’s 106 & Park on Tuesday.

Christina Milian, who is presently promoting the upcoming release of her new album Elope, blogs about her controversial blonde hair extensions.