Uma Thurman is reportedly expecting a baby girl.

The 'Kill Bill' star - who already has daughter Maya, 13, and son Levon, 10, from her previous marriage to Ethan Hawke - is apparently pregnant with a daughter.

A source said: ''Uma is having a baby girl,'' while a second added to Life & Style magazine: ''She's happy and just a few months along right now. She's due in late summer.''

The child will be the first for the 41-year-old actress and her businessman boyfriend ARPAD BUSSON - who also has two children, Arpad Flynn Alexander Busson and Aurelius Cy Andrea Busson from a previous marriage to supermodel Elle Macpherson.

Uma and Arpad first got together in 2007 but later split in November 2009. Reports of a reunion circulated after they were spotted together at a Marc Jacob's fashion show in Paris last year, and Uma recently gushed that she has finally found a ''happy'' place.

She told Harpers Bazaar magazine: ''I have something I would really like to express about my love life. I'm happier with it now than I've been in many, many years. Yes I'm trying to have as peaceful a personal life as possible.''