Congrats, rainbows and butterflies to Christina Applegate! She and her fiancé welcomed their first daughter on Thursday. Both Applegate and her baby are doing well and resting at home.

“Actress Christina Applegate and fiancé, musician Martyn LeNoble, welcomed daughter Sadie Grace LeNoble on Thursday, Jan. 27, 2011, in Los Angeles,” the spokesperson said in a statement. “Mother and daughter are doing great.”

Christina and Martyn have been engaged since Valentine’s Day of 2010 and announced her pregnancy in July.

[Keep Clicking Thumbnails for a Larger Image]