has never been happier. The This Is 40
actress and new mom loves spending time with her husband, Brian Austin Green
, and their 4-month-old baby boy, Noah. In an interview with Marie Claire UK's March issue, Megan, 26, opens about how much motherhood has changed her. "All I wanted to do my whole, whole life was have a baby and, now, I've finally done it," she says. "I just want to give Noah as much of myself as I can." "It's very hard for me to do [professional] stuff, because I feel like this isn't my job anymore," she adds. "My job is to be with [Noah]." But there are some drawbacks to having such an open heart. "I can't watch the...