Busy Philipps arrives at the 19th Annual ELLE Women In Hollywood Celebration at the Four Seasons Hotel Los Angeles at Beverly Hills on October 15, 2012 in Beverly Hills, California. Credit: Jon Kopaloff/FilmMagic

Busy Philipps is going to have a busy 2013 -- because she's expecting her second child!

The Cougar Town actress, 33, announced the news via Twitter on Monday Dec. 10 with an unmistakable photo of a Clearblue pregnancy test stick reading "Pregnant." Quipped the bubbly blonde in the caption: "So this happened . . . " A rep for the star also confirms the pregnancy to Us Weekly.

The baby-to-be will join Birdie, Philipps' 4-year-old daughter with screenwriter husband Marc Silverstein, whom she wed in 2007.

Philipps is also godmother to Matilda Ledger, the 7-year-old daughter of Michelle Williams, her best friend and former Dawson's Creek costar.

The actress spoke to Us Weekly back in 2010 about giving birth for the first time -- sans painkillers!

"I had a baby with no pain medicine, mainly because most people I talked to didn't think I'd be able to do it," Phillips told Us. "So there!"