A source told the publication that the Duke of Sussex arrived at The Sands End Pub in Fulham, London, on Wednesday, January 30.
Harry was spotted entering the establishment alone but surrounded by security just hours after his wife made a grand solo appearance in head-to-toe black at the National Theatre in London.
An eyewitness told RadarOnline.com: “A casual-dressed security team walked Harry into the bar and surrounded him so he wouldn’t be hassled.”
The source continued: “It’s his favourite pub, and his godfather owns it, so Harry goes there a lot.”
The publication reports that Markle, 37, has banned Harry from drinking alcohol, tea, and other caffeine beverages during her pregnancy and that Harry agreed to replace alcohol with mineral water to get healthier and show solidarity during her pregnancy.