The Duchess of Cambridge has spoken out about her struggles with motherhood to highlight mental health issues.
In a video for mental health charity Heads Together, she said: " I remember the first few days with little George, you have no idea what really you are doing, no matter how many books you read, nothing can prepare you for it.
"Those first few weeks were a steep learning curve massively."
Her husband appeared in the video with her, alongside Prince Harry, and the Duchess turned to the Duke of Cambridge to say: "You often speak openly about the emotional changes that even you've gone through and I think a lot of parents can hopefully identify with that in having a child, particularly your first child, is such a life-changing moment. Nothing can prepare you for that."
In the incredibly candid video, the Royal family spoke about their own emotional struggles, with the Duke talking about the challenges of working with the Air Ambulance and being affected by the family cases.
"It's been interesting understanding why I get so upset about certain things and why some things really affect me," he said. "I thought I was quite straight down the line but I actually feel a lot more than I used to."
He also spoke to his brother about losing their mother at such a young age, admitting that over the years they hadn't "talked enough about [their] mother."
Prince Harry, who spoke about visiting a therapist in his twenties to The Telegraph this week for Bryony Gordon's Mad World podcast, agreed with his older brother, saying: "Both of us have been open to each other saying we've never really talked to each other and losing a mum at such a young age.
"I always thought what's the point in bringing up the past? What's the point in bringing up something sad? It ain't going to change it, it ain't going to bring her back, and when you start thinking like that it can be really damaging.
"You [William] always said to me you've got to think about those memories, but for me it was like, I don't want to think about it."
The Duchess also shared her thoughts on the boys losing Diana when they were children, saying: "I do think it's incredible how strong [you both are] and how you've been able to cope with it. I put that down to your early years but also the relationship you've got. You're amazingly close - most of the time. Sometimes families sadly aren't as lucky as you guys have been."
They also spoke about how their campaign to spread awareness about mental health began, with the Duchess explaining that she realised it was the "common thread" linking all their charity work together - from homelessness to addiction and bereavement.
She referenced a conversation with a young mother she met at the Anna Freud centre, saying: "Having those [open] conversations is like medicine for her, and that is the point, it's okay to have that conversation even if it's uncomfortable and awkward."