The Duchess was expected to rest for the first part of the day while Prince Harry undertook several engagements focusing on environmental issues, before rejoining her husband for a reception.
Fans of Prince Harry and Meghan Markle were delighted when Kensington Palace announced on October 15, 2018, that the royal couple was expecting their first child together. The Duke of Sussex asked for them to repeat their statement to which he responded, "So do I!"
The couple first started to tell family members they were expecting at Princess Eugenie's wedding at St George's Chapel in Windsor on Friday and it is understood Meghan has already undergone her 12-week scan.More news: Protesters Demand Referendum on Final Brexit Deal
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Fans of the royal family know all too well that Thomas and Meghan's relationship has been rocky since the dad made a decision to repeatedly talk to the press and slam her and the royals.
However, the Duke of Sussex will now carry out the royal visits on his own, after revealing on Sunday that his wife was missing from the Invictus Games cycling event because "being pregnant takes its toll".
Earlier that day, the Duke and Duchess attended the opening of the redesigned ANZAC Memorial in Hyde Park, where Meghan wore NZ-born designer Emilia Wickstead.
"You hear people that met the Queen when she came here (in 1954)" said 26-year-old fan Christopher Cundle, "and they are still talking about it now". First of all I thought about Megan and how I was holding her newborn, in her arms.
Others shared similar sentiments about the casualness of the outfit, and it not being quite appropriate for the tour, with another user stating, "She packed for a honeymoon not a Royal visit".