But her recent appearances have prompted speculation over whether Meghan could be having twins.
Meghan Markle has been urged to "lighten up" and end her "phoney war" with the media.
Betway's Alan Alger said: "There is serious momentum gathering behind the idea that Meghan Markle is expecting twins and having cut the odds on that happening earlier in the week, sustained support has seen us significantly shorten the price again".
Prince Harry and his elder brother Prince William, the second in line to the throne, have had a strained relationship with the press since their mother, Princess Diana, was killed in a auto crash in Paris in 1997 while being chased by paparazzi on motorbikes.
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Meghan and Harry's outing comes just one day after the expectant royal was defended by George Clooney, who attended the pair's wedding past year.
"Daddy, it is with a heavy heart that I write this, not understanding why you have chosen to take this path, turning a blind eye to the pain you are causing", the letter reads.
So much so that royal aides at Kensington Palace are reportedly spending hours each week monitoring their social media accounts to moderate the sexist and racist comments aimed at Meghan, her sister-in-law Kate, and their fans. "It's irresponsible. I'm sort of surprised by that".
"I can't tell you how frustrating it is to see that. you're taking a letter from a daughter to a father and broadcasting it everywhere", the actor said.
She later hits out at Thomas for attacking Prince Harry in public, despite him always being "patient, kind and understanding" to him, before then accusing her half-sister Samantha of creating a web of lies that Thomas has simply followed.