Designer Stella McCartney (and daughter of The Beatles' Paul McCartney) is expecting her fourth child, Vogue confirms.
PHOTOS: Hollywood's new mom club
McCartney, 38, and British publisher Alasdhair Willis are already parents to two sons: Miller, 5, and Beckett, 2, and a daughter, Bailey, 3.
"Stella loves the idea of having a close-knit family, just like the one she grew up in," a source told the UK Daily Mail. "She's a great mum. She has been telling all her friends the good news."
PHOTOS: My baby looks like a celebrity!
Last February, the vegan fashion designer -- who is due later this year -- told the UK Evening Standard she was already thinking about adding to her brood.
"I'm kind of interested in having more children," she said. "Though right now I feel I've only just stopped having them, so I'm ready to have a bit of a break first."