This historic, epic tour immediately became even more thrilling - if that were possible.
Were some of the media at this evening's briefing privy to the news before it was made public?
The royal couple's trip Down Under is their only worldwide tour since they were married, apart from a two-day visit to Ireland.
Therefore their first baby, who is due in 2019, will probably take on the surname Sussex.
How old is Meghan Markle?
Meghan's mother, Doria Ragland, has also said she is "very happy" about the news. There has been no change to their schedule as of yet and they are expected to go ahead with their planned engagements.
But the pair's happy news is also celebrated on the front of many Australian newspapers too, as Harry and Meghan embark on their first overseas tour as a married couple Down Under. "That's what makes pieces special, the connection you have to them".
So the big tour Down Under hasn't even got underway - and the Duke and Duchess of Sussex are leading the news bulletins.
The Duchess of Sussex had sparked rumours she was pregnant at Princess Eugenie's wedding last Friday, as she chose to wear a long coat that covered her stomach for the whole day.
Meghan said the koalas were "so, so sweet", while Harry reached out to pet one and asked about their diet and sleeping habits.
During their first joint interview in November previous year, Harry said he and Meghan were keen to "start a family in the near future".
Kensington Palace announced that the trip would coincide with the Invictus Games, which is being held in Sydney from October 20-27.
They hadn't seen them in person yet so were only able to congratulate them on the wedding day, but they were already aware of the happy news.