Ashlee Simpson, 23, and Pete Wentz, 28, are engaged to be married.

A source told Us magazine, “They are ecstatic and can’t wait to be man and wife. They will be getting married before the end of the year.”

Simpson’s spokesperson confirmed the news, “Yes, they are happily engaged.” However, they wouldn’t confirm if the pop star is pregnant.

Simpson posted the following on friendsorenemies.com yesterday:

“We know there has been a lot of speculation recently about Pete and I, and we wanted our fans to be the first to know, because you guys are the best. Yes, we are thrilled to share that we are happily engaged.”

Simpson and Wentz have been together since 2006.