Prince Harry and Meghan Markle may be spending their first Valentine's Day as a married couple apart as Prince William's younger brother has an engagement to attend on the most romantic day of the year.

On Monday, Kensington Palace announced on its official Twitter that Prince Harry, who is captain general of the Royal Marines, will be visiting Exercise Clockwork for its 50th anniversary celebration in Bardufoss, Norway on Feb. 14. The statement made no mention of the Duchess of Sussex and did not reveal whether the pregnant royal will be tagging along with her 34-year-old husband.

As for what exactly Exercise Clockwork is, the palace revealed details about the event Prince Harry will be attending next month. “Clockwork is the traditional name of the annual winter exercise, based in one of the world’s most demanding environments 200 miles inside the Arctic Circle, which has trained over 16,000 @RoyalMarines and @RoyalNavy sailors and airmen since 1969,” another tweet read.

During this royal engagement, Prince Harry will get to know more about Exercise Clockwork and see how it operates.

"[Prince Harry will] meet military personnel living and training on the base, view some of the specialist outdoor severe weather equipment and training that is conducted at Clockwork and talk with expert aircrews and engineers,” the palace wrote.

Prince Harry, Meghan Markle
Prince Harry and Meghan Markle may spend Valentine's Day apart this year. Pictured: Prince Harry, Duke of Sussex and Meghan, Duchess of Sussex attend the Cirque du Soleil Premiere Of 'TOTEM' at Royal Albert Hall on January 16, 2019 in London, England. Getty Images/Paul Grover

However, it's likely that Markle won't accompany her husband to this particular royal engagement as she is now nearing her due date. According to Us Weekly, the pregnant duchess is expected to give birth around late March or early April, so she could be on bed rest by that time.

Markle, though, hasn't shown signs of slowing down in her own royal duties, so it is possible that she may also attend a solo engagement.

But royal fans who want to see Markle and Prince Harry together again will get their chance when the royal couple heads to Bristol on Feb. 1. The couple will learn more about the city's history and pay a visit to Bristol landmarks such as the theater Bristol Old Vic and boxing gym Empire Fighting Chance.

The following week, a pregnant Meghan and her husband will attend the Endeavor Funds Awards, like they did last year.