Are You Taking Notes, Prince Harry? Prince William Has Some Advice For New Fathers 

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Prince William shared parenting advice with new dads at an event in London, recalling his early days of fatherhood and his experience with his kids.

"It's very daunting how tiny they are when they first arrive," he said. "They are so fragile, tiny little fingers and toes. You do feel like if you move them around too much, they are going to break, but they don't. Wait until they're nine months, and they'll be off."

The Duke of Cambridge also spoke about mental health and the challenges fathers have when they start a family.

"Once the lack of sleep starts setting in, the stress levels go up. From a young age you're taught to have a vision, have a plan, have a career and all of a sudden babies come along and you have to start thinking about a lot more. I think ladies are a lot more giving, a lot more generous but guys, to make a success of whatever we're going to do, we get into a rhythm. It's such a change, your whole life goes one way and suddenly you're told to stop in your tracks," William said.

The royal’s words of advice come as his brother Prince Harry and his wife Meghan Markle prepare to welcome their first child this spring.