Stella McCartney is expecting a fourth child, reports The Daily Mail.
The 38-year-old fashion designer is to add to her brood with husband Alasdhair Willis later this year.
The couple already have two sons, Miller, five, and Beckett, two, and a three-year-old daughter, Bailey.
However, Miss McCartney admitted in February that she was keen to add to her family, saying: 'I'm kind of interested in having more children. Though right now I feel like I've only just stopped having them, so I'm ready to have a bit of a break first.'
The number four seems to run in the family. With the Beatles, her father, Sir Paul McCartney, was of course one of the Fab Four, while she herself was one of four children. She was seen this week with a big bag that covered her stomach as she arrived at her West London home fresh from the school run.
A source close to the designer told the Mail: 'Stella loves the idea of having a closeknit family, just like the one she grew up in. She's a great mum. She has been telling all her friends the good news.'
A spokesman for Miss McCartney declined to comment.Source