The Biggest Loser: Couples host Alison Sweeney won't be so big any longer.

Sweeney gave birth to a baby girl named Megan Hope Sanov late Monday evening, People magazine reported Tuesday.

"Both mommy and baby -- and daddy, too -- are doing well," Sweeney's representative Carrie Simons told People.

Megan weighed 6 lbs. 7 oz at her initial weigh-in, according to People. She is the second child for Sweeney and her husband Dave Sanov, who also have a 3-year-old son named Ben.

Simons told People that Sweeney, who viewers had seen noticeably pregnant when she hosted NBC's live finale of The Biggest Loser: Families on December 16, had continued to work on The Biggest Loser: Couples -- which premiered last week -- right up until she gave birth.

"She's still in hair and makeup from her day on the set." Sweeney's representative told People. "It was a very easy delivery, and everybody is great."

Sweeney is expected to return to The Biggest Loser ranch and resume filming the show's Couples edition after "a short break," an NBC spokesperson told Reality TV World on Tuesday.  She is still expected to appear in every episode of The Biggest Loser: Couples, which is continuing to film in her absence.