Jolie pregnant?

Actress Angelina Jolie has cancelled plans to give a lecture in Italy this week, amid reports she is pregnant with her and Brad Pitt's second biological child.

The 'Tomb Raider' beauty was due to give a talk at the Pio Manzu Centre near Rimini as part of a conference entitled, 'The Flight Of The Hummingbird - The Future of Children In The Mind And Society Of The World' - but pulled out at the last minute.

Local newspaper reports claim Jolie cancelled the appearance after discovering she was expecting - and a spokeswoman for the Pio Manzu Centre appeared to 'confirm' the media speculation.

Letizia Manjani says: "Angelina cancelled last week. Due to her privacy I can't confirm her pregnancy, but I can say that the Italian newspapers are correct in their reports."

Jolie and her boyfriend Pitt have their own biological daughter, 16-month-old Shiloh, as well as their adopted children Maddox, six, Pax, three and Zahara, two.

Pitt recently expressed his desire to expand their family once again by saying: "We're ready for another one."