Former Tiger Woods mistress Rachel Uchitel and her new hubby Matt Hahn are the proud new parents of a baby girl named Wyatt Lilly, Matt posted to his Facebook page Wednesday.

The baby weighed in at just more than 7 pounds, and “both Rachel and baby are resting comfortably,” according to Rachel's spokesperson.

Former Tiger Woods’ mistress Rachel Uchitel announced Tuesday she’s five months pregnant, tweeting pics of she and new hubby Matt Hahn embracing, with a baby bump in full view.

The New York native tweeted, "Expecting big things for 2012... Five down, Four months to go..." and "checking out my baby bump at 5 months..."

After marrying Hahn in October, Uchitel told us exclusively last month that “a baby is the plan,” adding she doesn’t care if she has a boy or a girl, as long as the child is healthy.

Tiger who?

Honeymoon hottie Rachel Uchitel is a million miles away from the 2009 Thanksgiving that propelled her to international infamy, and RadarOnline.com has an exclusive interview with the newlywed beauty.

Rocking a green bikini as she finished up a luxurious vacation in the $1,800-a-night presidential suite at the Villa del Palmar at the Islands of Loreto with her new hubby, Matt Hahn, Rachel is happier than she’s ever been, dishing on married life, baby plans and how Dr. Drew Pinsky changed her life.

“Marriage is great,” she said about her two month union. “It is no different than it was before we were married. It feels right and that is how it should be.”

Eat your heart out Tiger Woods!

Rachel Uchitel hit the waves on her honeymoon Sunday rocking a tiny string bikini and RadarOnline.com has the shot of the gorgeous newlywed in Mexico.

With her new hubby Matt Hahn, Rachel is vacationing at the luxury Mexican resort Villa del Palmar at the Islands of Loreto.

Tiger Woods' ex-girlfriend Rachel Uchitel married her boyfriend, Matt Hahn, in a secret ceremony in Las Vegas on Sunday and RadarOnline.com can exclusively reveal that the walk down the aisle was very spontaneous!

"Rachel and Matt attended a friend's wedding this weekend and were inspired to tie the knot themselves. It was all very spur of the moment and very romantic," a spokesperson for Uchitel exclusively told RadarOnline.com.

The new bride revealed details of her impromptu wedding. "Matt and I were married in front of 12 friends on Sunday night at the Little White Wedding Chapel in Las Vegas, where everyone from Michael Jordan to Demi Moore and Bruce Willis, to Britney Spears were married," Uchitel told Radar in an e-mail on Tuesday.

Tiger Woods' ex-girlfriend Rachel Uchitel has married her boyfriend, Matt Hahn, in a secret ceremony in Las Vegas.

The couple were wed on Sunday night and RadarOnline.com has records of the marriage license that was filed in Clark County, Nevada.

They applied for a marriage license on Sunday at 9.20 p.m., and filed a marriage affidavit -- which is granted post-wedding -- on Monday morning at 8.58 a.m.

Rachel has given no hint on Twitter that she tied the knot herself, but did confirm that she was in Sin City for a friends wedding last weekend.

In the aftermath of Osama bin Laden’s death, Rachel Uchitel has paid tribute to her late fiancé investment banker James Andrew O’Grady who was killed in the 9/11 terrorist attacks.

Before Uchitel, 36, gained notoriety as a Tiger Woods' mistress or as a reality TV star her life was shattered when O’Grady was killed at the World Trade Center site.

A few days later, a haunting New York Post image of a sobbing Uchitel clutching a photograph of her fiancé became known around the world.