Harry will head to the Netherlands next Wednesday and Thursday for an event in Amsterdam, then will "travel to The Hague to officially launch the one year countdown to the 2020 Invictus Games."
The announcement has convinced royal watchers that Meghan Markle will give birth soon.
"It's unthinkable that [Harry] would leave his wife and potentially miss the birth of his child," Roya Nikkhah, royal correspondent for the Sunday Times, told Inside Edition, "so [it's] safe to say one way or another they're expecting that baby in the next few days."
Some even wonder whether the baby is already here.
British radio DJ Chris Evans speculated on air that the queen's recent visit to Frogmore Cottage, where Meghan and Harry live, was to see the child.
"The queen has been to see Meghan and Harry ... at their place, right?" he said. "Now, she doesn't do that. That's all I'm saying.”
Meghan and Harry have announced they will not pose for the media immediately after the birth but rather opt for intimate portraits at a later time.
"The photo will be taken by a photographer from PA, which is our press association here, and it will be within a few days of the baby having been born, whenever the couple feels comfortable doing it," said Nikkhah.
Still, the couple found time to stir up drama on social media when their Instagram account unfollowed the entire royal family.
But the decision was a meaningful reason: In honor of Mental Health Awareness Month, Meghan and Harry are only following organizations that "promote mental well-being, mental fitness, body positivity, self-care, and the importance of human connection."