Christina Applegate and Daughter Sadie Grace Cover People

Christina Applegate and her beautiful three week old daughter, Sadie Grace, are featured together on the cover of the new issue of People magazine.

The new mom says that motherhood has had an overwhelming affect on her:

"I felt my heart literally open up for the first time and like wrap itself around her. It was profound," the new mom tells People. "And I'm more in love with her every minute of the day. She's healed me in so many ways. She's just made my life so much better. She's opened my whole soul."