The 25-year-old welcomed Khai, her first child, in September at home.
It is the US model and One Direction star's first child together.
We are living in truly different times to when 1D were put together on The X Factor in 2010.
It's 10 Years Since X Factor's Most Iconic Series Began – How Many Of These Moments Do You Remember?
From Ablisa and Wagner, to One Direction and Cher Lloyd, the 2010 series featured many memorable contestants.
The members of 1D have caused plenty of controversy during their 10 years in the spotlight.
10 years ago, Simon Cowell decided to bring together four solo acts on X Factor to create boy band One Direction. Since that fateful moment, Zayn, Niall, Harry, Louis and Liam went on to takeover the world with four albums and 326 shows across four global tours to become the biggest boy band that the world has ever seen. Here’s everything you need to know about One Direction.
Story Of Their Life: 1D Fans On Ten Years Of Fandom And The Legacy Of The Boyband That Changed Everything
Ten years ago, Simon Cowell put five solo X Factor auditionees together to form a band. This is how that moment shaped life for their biggest fans.
From the band's family homes to the golf course, Directioners were never far behind.
It's now been a decade since Harry Styles, Zayn Malik, Liam Payne, Niall Horan and Louis Tomlinson came together on The X Factor.
Harry Styles, Liam Payne, Louis Tomlinson, Zayn Malik (but not Niall, sensible lad) have become renowned for their array of body art.