When Brad Pitt and Angelina Jolie's twins Knox and Vivienne were born one minute apart in 2008, they joined their back-to-back adopted siblings, Zahara, who was born 14 months after Pax, and the couple’s first biological child Shiloh, who was born 16 months after Zahara.
Before splitting in January 2012, Heidi and Seal had three children together, and Seal was adoptive dad to Heidi’s son Leni. There’s a year between Leni and Heidi and Seal’s first son together, Henry, and a year between Henry and next eldest Johan. The couple left three years between having Johan and welcoming their daughter Lou in 2009.
Here’s a maths puzzle to make you scratch your head: Brit was actually pregnant for 18 months of her 28 month marriage to Kevin Federline. She gave birth to Sean in September 2005, and Jayden arrived almost exactly a year later. Kevin’s former partner, Shar Jackson, also had back-to-back babies, welcoming two sons 14 months apart.
The most fertile woman in Hollywood? Step forward 90201 star Tori Spelling, who is mum to Liam, five, Stella, four, Hattie, 10 months, and Finn, three months. Tori announced her fourth pregnancy five months after giving birth to Hattie. She then revealed that she discovered she was expecting again just ONE month after welcoming Hattie, saying: "Dean and I kind of sat there in shock for a while and then we said, 'Well, we wanted four. This is when our miracle wanted to come so we'll take it.’”
Model Danielle and husband, footballer Jamie O’Hara, announced they were expecting baby number two eight months after welcoming their first son, Archie. Danielle gave birth to second son Harry 10 weeks early, and following a tough few weeks in hospital, he was allowed home with his mum and dad. Speaking when pregnant with Harry, Danielle said: “I must be the most fertile person in the country!”
Lily and husband, Sam Cooper, are set to welcome a brother or sister for their daughter Ethel one year after welcoming their little girl. Lily has kept mum about her second pregnancy, just hinting now and again about her bump and morning sickness on Twitter.
US Weekly announced Jessica and partner, Eric Johnson, were expecting baby number two just seven months after she gave she birth to daughter Maxwell Drew. Well, there goes the Weight Watchers big money deal...