Now that she’s pregnant with Simon Cowell’s baby, Lauren Silverman is looking to get hitched.

"He promised to marry her after learning she was pregnant, and she is trying to make sure she keeps his promise." a source told The NY Post on Thursday.

"Simon says he will do the right thing for the baby."

Us Weekly first broke news that the 36-year-old is expecting a baby with Cowell. The pregnancy news has been quite a surprise to many, including Lauren's estranged husband, real estate mogul Andrew Silverman, who happens to be close friends with the X Factor judge.

"Lauren and Andrew have been unhappy in their marriage for some time, and their divorce has been in the works for a while," a source told Us Weekly. "As their marriage deteriorated, she and Simon became close."

Andrew Silverman Breaks Silence About Baby News 

On August 1, the New York Post revealed that Andrew quietly filed divorce papers in N.Y.C. two weeks ago, citing adultery and naming Cowell on the documents.

"It's really a signal to the spouse who cheated that the wronged spouse is very angry and that it's going to be a very nasty, scorched-earth, high-profile litigation," divorce attorney Martha Cohen Stine explained to the Post.

Andrew and Lauren share a 7-year-old son.

The NY Post reported that Cowell and Lauren had met on vacation seven years ago at the exclusive Sandy Lane resort in Barbados. Andrew introduced Cowell to her husband.

A few months ago, Lauren posted photos (above) of herself in a bikini, snuggling with Cowell on his yacht, with the caption, "Me and my little Simey monster." Those photos have been deleted.