Kristin Cavallari, whose debut book is due out in 348 days, recently filmed a television show, according to Kristin Cavallari. To inform the public of this new venture, she posted a photo of herself standing next to a (Catholic?) church clutching her pregnant stomach on Instagram.

“Just finishing filming...” Kristin wrote in the caption. “Will let u know what show when I’m allowed to ;)”

What could it be? The outfit screams “Mad Men: The Next Generation.”

The flirty wink suggests porn.

This has been 500 Days of Kristin.

[Photo via Getty]