Baby Watch

We're told Ryan will not submit to the DNA test until the baby is born. There are prenatal paternity tests, but there's a slight risk of miscarriage and Ryan does not want to take the chance.

Our sources say Ryan will step up and provide support for Alexis Knapp's unborn baby, provided it is indeed his.

Although there are reports Ryan and Alexis were boyfriend/girlfriend, we're told that was never the case. They had dated for a while but it was never serious.

Sources close to Gibson tell TMZ his daughter Hannah gave birth Saturday night to a baby boy. It's Mel's third grandchild -- two boys and one girl -- all from Hannah and her hubby, blues singer and guitarist Kenny Wayne Shepherd.

Huckabee went on a radio show Monday and said, "One of the most troubling things is that people see a Natalie Portman or some other Hollywood starlet that boasts of, hey look, we're having children, we're not married, but we're having children and they're doing just fine."

Portman is engaged to her baby daddy -- co-star Benjamin Millepied.

Huckabee -- a Republican who could make a run for the White House -- added, "There aren't really a lot of single moms out there that are making millions of dollars each year by being in a movie"

"I think it gives a distorted image that not everybody hires nannies and caretakers and nurses. Most single moms are very poor, uneducated, can't get a job, and if it weren't for government assistance, their kids would be starving to death and would not get healthcare."

The woman -- who called herself Paige -- went on the air Tuesday claiming she and Chad had a secret affair and she is now 3 months pregnant with his kid.

But sources close to Chad -- who's engaged to "Basketball Wives" star Evelyn Lozada -- tell us Ochocinco is adamant the woman is merely giving birth to a BS rumor ... because the two have never, ever met in person.

We're told Ocho exchanged some Twitter messages with the woman more than a year ago ... but insists nothing ever came from it.

The 29-year-old Oscar nominee is due this summer.

Sources directly connected with the birth of Faith tell TMZ ... Nicole and Keith were frank about their choice -- that in Australia they live in a fishbowl and they can't do anything on the down low.

The couple told people connected with the birth that the U.S. is so "entertainment oriented," they're just two of many celebs and aren't scrutinized the way they are in Australia ... making it a lot easier to have the baby without anyone noticing.

Sources tell us ... the baby was born at Centennial Medical Center in Nashville on December 28, 2010. Her name is Faith.

Kidman and Urban are Faith's biological parents.

We're told Nicole and Keith went into the hospital on the down low last week, visiting Faith and the surrogate during her stay. They entered the hospital through the back, took the service elevator to the top floor, which they rented exclusively for themselves.

We're told the baby is home.

Yes, Nicole and Keith were both at the Golden Globes last night.

UPDATE: Keith and Nicole just released a statement to TMZ saying, "Our family is truly blessed, and just so thankful, to have been given the gift of baby Faith Margaret. No words can adequately convey the incredible gratitude that we feel for everyone who was so supportive throughout this process, in particular our gestational carrier."

David broke the news this morning, saying, "I've got some great news to tell you all. Victoria and I are expecting our fourth child this summer. The boys are very excited about the arrival of a new brother or sister."

SCORES gentlemen's club in NYC sent Applegate the letter yesterday -- offering the "Anchorman" star a chance to reprise her role as pregnant pole dancer Roxy Fedaro ... from the hilariously awesome skit she just did for Funny or Die.

No word if Christina plans to accept -- but it could be worth it ... because according to the letter, Scores is prepared to fork over $10,000 per appearance. Plus tips.