Meghan, 39, and Prince Harry, 36, later said they wanted to lead a private life away from the spotlight.
It has since been confirmed that the pair, who tied the knot in 2018, are expecting another baby together.
Kevin has since taken to Twitter and reacted to a social media user’s comment as the professional dancer admitted he was pleased the pair shared the exciting news “on their terms”.
The person in question wrote: “I feel so sorry for Meghan she can’t do anything without being attacked for it. I don’t know her but she seems like a really kind lovely woman.”
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In view of his 251,000 followers, Kevin replied: “I’m not sure what they want from her.
“Did they think the world wouldn’t find out she was having another baby? Why shouldn’t they announce it on their terms?”
His comments come after he reacted to an earlier tweet from another social media user who claimed that both Meghan and Harry wanted privacy but shared their pregnancy news.
Fans of the Strictly star were quick to react to his post, as many shared Kevin’s sentiment.
Meghan described how she was looking after Archie one morning when she felt “a sharp cramp”.
She wrote: “I knew, as I clutched my firstborn child, that I was losing my second.
“Hours later, I lay in a hospital bed, holding my husband’s hand.”
The Duke and Duchess of Sussex have since shared the heartwarming news they are expecting a new arrival.