The former Spice Girls singer is currently expecting her third child and the 35-year-old star - who also has daughters Phoenix, 12, and Angel, four, from previous relationships and is stepmother to husband Stephen Belafonte`s daughter Giselle, six - thinks she will end up the size of a "house" before she gives birth in four months time. She said: "Every pregnancy is different but one guarantee is I go like a house, arse, t*ts, everything. "I▓m at the waddling stage. I`ve got three big bumps! "What can I say, I like eating. I think that when you`re pregnant, you kind of eat what you want, when you want. Mine is all day long and all night long. But I don`t mind." Mel is usually known for her toned physique but she admits she has done barely any exercise since getting pregnant. She added: "I go off any kind of workout when I`m pregnant. All my three pregnancies I`ve kind of avoided it." The new Australian `X Factor` judge also admitted her new fuller figure is a big hit with her husband. She said: "Stephen can`t wait for me to get to the proper baby belly-popping stage."