The mother-of-three, along with Wilkerson and their sons Mason, 6, Brady, 4, and Tucker, 1 month, posed at their Westport, Conn., home on Oct. 3 for the Once Upon a Birth campaign, which raises awareness about maternal mortality. (For more information, please go to the Merck for Mothers Facebook page.)
It was the family's first official portrait since welcoming their newest bundle of joy, the 8-pound, 5-ounce Tucker, on Tuesday, Sept. 18, at 10 p.m.
The actress and her musician husband, 35, whom she wed in Italy in July 2003, certainly have their hands full with the three boys, but Hart -- herself the oldest of eight siblings -- couldn't be happier about all the men in her life.
"If I was to pinpoint one amazing moment in my life, it would be the moment when my boys met. Mason walked in, jumped on daddy's lap, and looked at Brady in my arms on the hospital bed," she told Us Weekly in August, shortly before Tucker's birth. "That was just such a special moment, and I'm looking forward to that again."