Katherine Schwarzenegger Dresses Her Baby Bump in Black Onesie for Starbucks Run

Katherine Schwarzenegger is bumping along!

The 30-year-old pregnant author picked up an iced drink while out on a Starbucks run on Tuesday afternoon (June 23) in Brentwood, Calif.

PHOTOS: Check out the latest pics of Katherine Schwarzenegger

Katherine kept things cute and casual in a black onesie and snakeskin-print sandals for her outing.

The day before, Katherine donned flowy, black dress as she stepped out to run a few errands.

Over the weekend, Katherine took to Instagram to wish husband Chris Pratt a Happy Father’s Day and a Happy 41st Birthday.

Get the scoop on when Katherine is due to give birth!

FYI: Katherine is wearing a Smash + Tess romper.