Kristin Cavallari is a baby makin' machine!

"The Hills" alum and hubby Jay Culter are expecting their third child together, with Kristin sharing the big news via social media on Monday. 

"We're at it again! Thrilled to announce baby number 3 is on the way! The cutler crew just keeps growin'!," the blonde beauty posted on her app, along with a sweet family photo. 

In the pretty pic, the former reality star poses in front of her two boys, Camden Jack Cutler and Jaxon Wyatt Culter, as she makes a heart shape with her hands around her growing belly. 

The 28-year-old and her footballer beau welcomed their son Jaxon in May 2014 ... and revealed that she's been lucky enough to have two easy pregnancies thus far. 

"Both pregnancies have been really easy for me, I've just been really tired. It's just one of those things where I could literally sleep all day everyday but I'm snapping out of it a little bit now that I'm in the second trimester," Cavallari told E! News last year. 

We'd love to see the fashionable star give Camden and Jaxon a baby sis! 

What do you think about Kristin's baby news? Tell toofab in the comment section below and click "Launch Gallery" above to see even more expecting stars! 

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