The 34-year-old actress welcomed her first child on Tuesday and used the opportunity to announce she recently married her 'The Client List' co-star Hallisay, whom she got engaged to in June, reported Us magazine.
"Jennifer Love Hewitt and her husband Brian Hallisay are thrilled to announce the birth of their daughter. Autumn James Hallisay was born on November 26," a spokesperson for the actress told Us magazine.
A source also revealed that the couple "got married recently in private".
The brunette beauty, who previously dated John Mayer, was joined by 24 of her closest friends and female relatives for the lavish event in a private room of the Hotel Bel-Air.