The Voice coach and Maroon 5 frontman posted a gorgeous black-and-white photo of Prinsloo on his Instagram account Monday night.
In the photo, Prinsloo is showing off her big baby bump topless, as jeans loosely sit unzipped on her hips. The 27-year-old Victoria's Secret model's hair is also tousled over one eye.
Levine, 37, captioned the artistic image, "YOWZA," with flame emojis on either side.
Levine announced he's expecting a baby girl, his first child with Prinsloo, back in late April when he appeared on Live with Kelly and Michael, which is currently called simply Live with Kelly because Michael Strahan left for a job with Good Morning America.
Levine wed Prinsloo in July 2014. News of the Namibia-born beauty's pregnancy broke on March 10.