Days later, Meghan arrived on Australia's Fraser Island wearing an & Other Stories printed maxidress almost identical to her sister-in-law's, save for its cap sleeves.
And the couple has also planned their trip to Fiji and Tonga around the current Zika virus risk.
Even though Meghan made quite an effort to keep up with Prince Harry and their demanding schedule during her first few days in Australia, she has finally chose to scale back on things.
On Sunday, the palace said that after a busy first week to their tour the duke and duchess had made a decision to cut back the duchess's schedule slightly ahead of the final week and a half of the tour.
However, she bounced back on Monday to join the duke on Queensland's Fraser Island.
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They attended an official welcoming ceremony at Albert Park, which reflected one attended by The Queen and The Duke of Edinburgh on their visit to Fiji in 1953.
Australia's Governor-General Sir Peter Cosgrove and his wife Lynne presented Harry and Meghan with a toy kangaroo and a little pair of Ugg boots for their baby, which is due in the spring.
The Duchess will attend a morning tea at the British High Commissioner's Residence and hear about a United Nations Women's project, Markets for Change, which promotes women's empowerment in marketplaces throughout the Pacific.
Prince Harry and Duchess Meghan's royal tour in Australia is taking an exotic turn as they go island hopping.
The duke and duchess are expected to catch some of the final events when they return to the harbour city on Friday. The couple will then finish their tour with a four-day visit to New Zealand.
Kensington Palace announced the couple's baby news at the start of their Australian tour and Harry spoke about Meghan's pregnancy on their first day in Sydney.