Note to celebrity wedding watchers: don't count on Nicole Richie and Joel Madden's nuptials to happen in the next few weeks just because her bachelorette party took place this past weekend. A source tells E!Online they're planning to tie the knot later in the year.

Richie and Madden are hoping to exchange vows in December but due to scheduling and planning issues, the reality TV starlet decided to throw her bachelorette party last weekend in Mexico.

Richie celebrated in Cabo with a bunch of friends including Christina Aguilera and Samantha Ronson. While it was originally thought to be a birthday celebration (she turned 29 on Tuesday,) she was spotted in a bride-to-be sash later in the weekend.

As her wedding day approaches, Richie still has some preparing to do. She reportedly hasn't selected a wedding dress yet, though sources say she's been looking at a bunch with her stylist Simone Harouche.