The British singer, who recently turned 26, took to the micro-blogging site Twitter to share a photo of her in bed, reported Ace Showbiz.
The pic came with a caption that read, "Bye bye 25... See you again later in the year."
Adele has not confirmed or deny the news. Her representative has declined requests for comment.
The Grammy-award winning singer's new album will come as the follow-up to her acclaimed '21', which was released in 2011.