The former `Beverly Hills 90210` star has announced she is expecting another baby with husband Dean McDermott, which will be a little brother or sister for Liam, five, Stella, three, and five-month-old Hattie.
Writing on her website, Tori said: "Dean, Liam, Stella, Hattie, and I are beyond thrilled to announce that another little McDermott is on the way! We feel truly blessed that another angel has found us. Love, Tori xoxo."
Tori - who married Dean in May 2006 - has made no secret of her desire to have a large family and said soon after Hattie`s birth that she wanted another one.
The 38-year-old reality TV star revealed: "People say, `Oh my God, it`s utter chaos after two.` But it`s not, it`s great.
"You lost your mind after the second one, so the third fourth and fifth, it`s like you`re so far gone, it`s just kind of the same."
Dean, 46, added: "As soon as I saw it was positive and it was a pregnancy, we both thought we need to have a fourth - at the same time."