Kristin Cavallari has denied she has gotten re-engaged to former fiance and NFL quarterback Jay Cutler.

"New week new rumor. I'm not engaged u guys," the former The Hills star and Dancing with the Stars participant wrote on Twitter on Monday afternoon.

Cavallari was presumably responding to a Life & Style report, published a few hours earlier, which claimed she and Cutler -- who reportedly began reconciling in September after splitting during the summer -- had recently gotten engaged again.

"Kristin is over the moon with happiness," Life & Style quoted a source as saying.

"She's already told her friends that the engagement is back on. They haven't set a new date yet."

Cavallari and Cutler got engaged in April after just seven months of dating and reportedly split in July when Cutler dumped her, leaving her "absolutely devastated" and "in shock."