But as she was pictured proudly showing it off for the first time since revealing the news, there may have been another reason why the singer was looking so happy.
In the snaps obtained by US magazine Life & Style it became apparent Adele has been keeping another secret from us, as she was seen sporting a gold band on her wedding finger, prompting speculation she's had a secret wedding to boyfriend Simon Konecki.
"She’s an old-fashioned girl and can’t wait to be part of a family unit. She just wants to focus on the baby and the man she loves.”
An eyewitness who saw the couple as they enjoyed quiet dinner at London's Eight Over Eight restaurant before window-shopping at Fulham Road’s antiques shops last month, said: “Adele was relaxed and calm, and she and Simon looked really great together.
“She seemed very, very happy. She absolutely does have a pregnancy glow.”
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> IN PICS: PREGNANT CELEBS
Who's the mumma? Peaches Geldof Who's the daddy? Thomas Cohen Baby ETA: April 2013 Interesting fact: Peaches and Thomas are expecting a boy and are planning to name him Phaedra.
Who's the mumma? Fearne Cotton Who's the daddy? Jesse Wood Baby ETA: Early 2013 Interesting fact: Fearne had to deny she knew the sex of her baby when she referred to her bump as 'her'.
Who's the mumma? Imogen Thomas Who's the daddy? Adam Horsley Baby ETA: February 2013 Interesting fact: Imogen and her boyf had been dating 10 months when the star fell pregnant