Allison Sweeney Allison Sweeney

Alison Sweeney's family just got bigger.

The host of the popular weight-loss reality show, The Biggest Loser, gave birth to a baby girl named Megan Hope Sanov, just before midnight on January 12th, People reports. She weighed 6 lb. 7 oz.

"It was a very easy delivery, and everybody is great," her rep, Carrie Simons, reported. Sweeney, who worked up until the last moment, was still in her hair and makeup from shooting when she gave birth.

Sweeney is married to Dave Sanov, and the couple is already parents to 3-year-old son, Ben. "Both mommy and baby — and daddy, too — are doing well," says Simons.

You can catch a brand new episode of The Biggest Loser: Couples tonight at 8 pm/ET.