Actress Jamie-Lynn Sigler and her fiancé Cutter Dykstra welcomed a baby boy Wednesday.

The former Sopranos actress and her baseball player husband-to-be named their first child Beau. Sigler's rep told Us Weekly, "Both mommy and baby are great!" 

A source told the publication that the actress "couldn't be happier."  

"Cutter is the perfect guy for her," added the insider.  "Although they have only been together for a year, they both know that this is it for both of them. They are both on cloud nine, as are their families and friends."

The couple announced their engagement in January and two week later they announced Sigler was expecting their first child together.

Jamie-Lynn Sigler Engaged To Baseball Player Cutter Dykstra, Flaunts Engagement Ring (PHOTO) 

Sigler told People in April that news of her pregnancy threw the couple "for a loop."

"We definitely thought it was going to be a slow relationship process and possibly an engagement - I felt like it was coming," the actress said.  

The Entourage star shared the news of her engagement to Dysktra on Twitter in January. She tweeted a link to her Instagram photo with the caption "so this just happened..." The self-portrait showed Sigler flouting her diamond engagement ring, smiling while posed next to Dykstra, who is an in-fielder to the Washington Nationals baseball team. 

Jamie-Lynn Sigler Pregnant, News Shared Two Weeks After Engagement To Cutter Dykstra 

She later shared the news with Us Weekly that she was expecting 16 days after Dykstra asked her for her hand in marriage. 

The couple has been dating for over a year.