Angelina Jolie and Brad PittAngelina Jolie and Brad Pitt are reportedly planning to continue their three year run of expanding their family by a child a year in 2008 by having another baby together.

Angelina adopted daughter Zahara in 2005, then 2006 saw the arrival of second daughter Shiloh and second son Pax joined the Jolie-Pitt clan next year - and now a source has told OK magazine that the couple are making plans for child number five.

The inside source explained: “Brad and Angie are hoping it’ll happen soon, before [youngest child] Shiloh gets too much older.”

19 month old Shiloh is said to be moving into a “grown-up” bedroom at their Malibu home, freeing up her nursery for the next inhabitant: “[Brad]’s repainting her old room in neutral tones so they have a blank slate for the next addition.”

“They’re ready [and] Brad’s family is hoping it’ll happen soon.”

The source added that Angelina is keen for it to happen soon too - possibly too keen. She is said to have had difficulty conceiving thus far after losing a dramatic amount of weight following the death of her mother last year and is worried that she might continue to have problems even after she regains the weight: “A family member told her the more she stresses about it, the longer it might take [to get pregnant]. Angie agreed and said she’d talk to Brad about the possibility of using fertility drugs.”