Real Housewives of Orange County star Meghan King Edmonds is going from stepmom to mommy!

The 31-year-old reality star announced she was pregnant with her first child earlier this week, and already the blonde beauty is showing off her baby bump in an itty-bitty- bikini!

RELATED: Beyoncé and Jay Z Want a Baby to Save Their Marriage

"It's like looking at a before and after photo in real life," she jokingly captioned the pic alongside her sister, Caitlin King.

The sales executive announced her exciting baby news with an adorable photo on social media alongside her husband, former MLB star and sports broadcaster, Jim Edmonds.

RELATED: Kate Middleton Appears to Have a Baby Bump — Is She Pregnant?!

"We're expecting a perfect little bundle of sugar and spice and everything nice," she wrote. "Jimmy and I are over the moon! We are thrilled to bring our daughter into our perfectly imperfect blended family in time for the holidays!."

Meghan is already a doting stepmom to the 45-year-old baseball star's four kids.

For more celebs baring their bumps, checkout the gallery below!