Now, there's no confirmation on whether this is true or not but it is commonplace to wait until the 12-week mark, the end of the first trimester, before sharing baby news with people.
Congratulations poured in for the thrilled couple, with Prime Minister Theresa May offering her "warmest congratulations" and the Archbishop of Canterbury, who married Harry and Meghan, saying: "Congratulations to the Duke and Duchess of Sussex on their happy news!"
They have just embarked on a royal tour, landing in Syndey earlier today and it's expected to last for just over two weeks.
The couple have 76 engagements scheduled over 16 days in Australia, Fiji, Tonga and New Zealand. Markle is a big fan of classic tailored pieces, most recently evidenced by her maternity look at Princess Eugenie's wedding, to which she wore a Givenchy navy coat and dress.More news: Pope defrocks 2 more Chilean priests accused of sex abuse
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"Awwwwwwwwww! Congrats harry and Meghan", another person wrote.
The Duke and Duchess of Sussex at Edes House, West Street, Chichester, as part of their first joint official visit to Sussex, Oct. 3, 2018.
"Their Royal Highnesses have appreciated all of the support they have received from people around the world since their wedding in May and are delighted to share this happy news with the public", Kensington Palace said in a statement Monday, as the couple began their tour in Sydney.
Prince Harry, of course, is one of the founders of the competition for injured military personnel. Also given the fact that the baby is 7th in line for the throne, the likelyhood that the first child will ever be a king or queen is virutally non-existent.
Taronga Zoo are excited to welcome the royals and confirmed they would finally come face-to-face with their furry namesakes.
But when a palace spokesman was asked if Meghan's father Thomas Markle had been told, the reply was "no comment", Mills said.