When is Carrie Underwood's due date, exactly? The singer hasn't said, but Country Quickie host Nicki D thinks she's figured it out. 'Bump Watch 2015' begins during this week's episode, which includes a guest appearance from "Young & Crazy" singer Frankie Ballard.

Thomas Rhett's dance moves are also featured prominently, but Ep. 2 is all about that bump. Check out a photo gallery of Underwood's growing belly, including a pic most country music fans hadn't seen until now.

The Country Quickie is a new, weekly "news" series starring YouTube star Nicki D. Her quirky personality is best described as a mix of Katie Couric and Tina Fey. Country's biggest stars know who she is, and they also know that when she's around, anything can happen ...

See More Photos of Carrie Underwood's Bump!