The Duchess of Cambridge has given a glimpse into what it's like to face the world's press hours after giving birth.
Following each of the births of Prince George, now six, Princess Charlotte, four, and Prince Louis, one, at the Lindo Wing of St Mary's Hospital in London, the Duchess posed for photos in front of the press and crowds of fans and well wishers.
In an honest interview, Kate revealed it was a "terrifying" experience, even though she may have looked relaxed - especially after the birth of her first child, George.
Kate, William and baby George pose outside the Lindo Wing
Kate revealed her thoughts when she was a guest on the podcast, Happy Mum, Happy Baby hosted by Giovanna Fletcher in the UK.
"What was it like knowing that so many people were outside, after you've given birth and you're in your little cocoon with your new family?" asked Giovanna.
"Yeah, slightly terrifying, slightly terrifying, I'm not going to lie (laughter)," said Kate. "Everyone had been so supportive and both William and I were really conscious that this was something that everyone was excited about."
"And, you know we're hugely grateful for the support that the public had shown us, and actually for us to be able to share that joy and appreciation with the public, I felt was really important," she said.
She added, "But equally, it was coupled with a newborn baby, and inexperienced parents, and the uncertainty of what that held, so there were all sorts of mixed emotions."
Kate also admitted that she doesn't remember much of her first few hours with George because she was so keen to leave the hospital and get home.
"Everything goes in a bit of a blur," she admitted. "I think, yeah I did stay in hospital overnight, I remember it was one of the hottest days and nights with huge thunderstorms so I didn't get a huge amount of sleep, but George did which was really great," she said.
"I was really desperate to get home and get back to normality. But I think you think, particularly with your firstborn baby, you think everything is going to go back to how it was.
"I totally underestimated the impact and the change it had on us from that moment really and I think, unless you've got children, you don't realise. No amount of planning and preparation can get you ready for that moment."
The podcast was recorded to promote Princess Kate's work with the early childhood years for both parents and kids. She also spoke openly about her battle with Hyperemesis Gravidarum - which is severe sickness during a pregnancy.
"I got very bad morning sickness. I'm not the happiest of pregnant people. Lots of people have it far, far worse.
"It was definitely a challenge. Not just for me, but also for your loved ones around you and I think that's the thing - being pregnant and having a newborn baby and things like that, impacts everybody in the family.
"William didn't feel he could do much to help and it's hard to see you're suffering without actually being able to do anything about it."