Prince Harry broke down as he recalled Meghan Markle's pregnancy during an emotional speech at an event paying tribute to seriously ill youngsters and their families.
The Duke of Sussex fought back tears at the WellChild Awards in London on Tuesday night as he discussed the challenges faced by parents.
Prince Harry said: "Last year when my wife and I attended we knew we were expecting our first child and no one else did at the time, but we did. I remember - "
Host Gabby Roslin then stepped in to comfort the Duke as the crowd encouraged the Royal to continue.
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After composing himself, Harry added: "Sorry. I remember squeezing Meghan’s hand so tight throughout the awards and both of us were wondering what it would be like to be parents one day.
"And more so, what it would be like to do everything we could to help our child, should they be born with immediate challenges or become unwell over time.
"And now, as parents, being here and speaking to all of you, pulls at my heartstrings in a way I could ever have understood until I had a child of my own."
Harry was later joined on stage for photographs with Meghan, the Duchess of Sussex.
It came as the Duchess confirmed their infant son had spent his first day at playgroup in Windsor on Tuesday - and that he takes after his flame-haired father.
Meghan, believed to be wearing the bottle green dress she wore during her 2017 interview announcing their engagement, told one girl and her mother: "I just took Archie for his first [playgroup] class. It was a lot of fun. He loved it."
Harry and Meghan were chatting to Milly Sutherland, 11, and her mother Angela from Liverpool.
The 50-year-old said: "She took him to one of these baby classes today and she said they had loads of fun together. She said it was really good fun."
The mum and daughter asked the couple whether Archie has red hair.
Milly's mother said: "Meghan said he has and Harry said he definitely is, you can see it in his eyebrows.
"Harry said he'd had no hair for five months, but Meghan told him she had taken him to the playgroup and she said there were other children there with the same amount of hair or even less."
The royal couple spent time with all 10 young winners during an hour-long meet and greet before the ceremony started.
Oakley Orange, 13, from Rochester in Kent, said Harry encouraged the youngster to take part in a bungee jump - much to the surprise of his mother, Lorraine.
Oakley, who had to learn to walk and talk again after suffering organ failure as a seven-year-old, said he interrupted his mother "talking about something long and boring" to give the duke a high-five.
Of the bungee-jump idea, Oakley said: "Harry said I'd have about 10-15 years of thinking it was a good idea before I changed my mind.
"He said he didn't want to encourage me... but he did, really.
"I'll get it booked next week. They're royals, you kind of have to do what they say."