As Us Weekly reported exclusively on Tuesday, June 4, Hewitt is around three months pregnant.
"We're so thrilled and happy to start a family," the costars told Us in a statement.
Hallisay proposed in late May, while the two were vacationing in Europe.
PHOTOS: Jennifer Love Hewitt's sexy style Adding to the couple's bliss is the news that they're expecting their first child.
While spilling behind-the-scenes secrets of the drama during a Tuesday appearance on Bravo’s “Watch What Happens Live,” host Andy Cohen pressed the 49-year-old actor on which former “Fiver” hooked up with the most fans.
The first part is definitely true, but..." PHOTOS: Jennifer Love Hewitt's body through the years In Us Weekly's June 17 cover story, Hewitt flashes her engagement ring and shows off her baby bump for the very first time. "For years, she has been saying she wanted to get married and start a family," a pal says of Hewitt.
"I know that I love being able to give my love out to someone.
PHOTOS: Jennifer Love Hewitt's boyfriends, past and present "I wish her the best," Daly, 39, told Us Weekly of Hewitt, 34. I lost my dad when I was young, so being a father was always something I really wanted to do, and so it means a lot to me and I'm sure it'll mean as much to her.
“I almost get emotional talking about it,” Wolf said.
PHOTOS: Jennifer Love Hewitt's body through the years The 34-year-old actress has long been vocal about her desire to get married and start a family.