Another Bachelor bun is in the oven!

Former Bachelorette star Jillian Harris is expecting her first child with boyfriend Justin Pasutto.

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The couple shared the exciting news on Instagram, posting an adorable photo of Jillian with their dog, Nacho Cilantro. You can only see a silhouette of the 36-year-old's profile, but her baby bump is already showing.

"So everyone has been waiting and waiting and waiting and frankly I'm tired of everyone telling me to lock it up… I mean if you know Jill she will loose the ring. So I came up with the best invention ever for the love of my life. A little baby miracle in her tummy," Justin captioned the pic, joking about the pressure to get engaged.

"Words can't express how lucky and blessed we feel to introduce a new life into ours and that our wish has finally come true."

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Jillian, who's currently the host of HGTV's Love It or List It: Vancouver, is just the latest Bachelor alum to announce a pregnancy, joining Sean Lowe and Catherine Giudici, Ali Fedotowsky, Melissa Rycroft and Emily Maynard.

Congrats to the happy couple!

Check out the gallery below for an update on all the Bachelor babies!