EXCLUSIVE: Jo Frost Says Her TV Career Nearly Cost a Relationship

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Supernanny star Jo Frost dished to ET about the sacrifices she's had to make for her reality TV career and revealed it almost cost her relationship.

The 44-year-old reality star has spent more than a decade lending her expertise in simplifying families' lives, but the focus she spent on keeping other families happy nearly cost her a family of her own.

WATCH: Nanny Jo Frost Comes Out Swinging in TV Return

Frost told ET that the job caused a rift between herself and her fiancé Darrin Jackson.

"You love what you do, but you love the man that you're with, and you feel constantly torn because you love both," Frost said. "Darrin is production manager on this show, so he gets to work with us. It almost didn't work! The idea of it not working wasn't an option for me, or for Darrin, but the reality is that you have to live by what you preach as well."

What she preaches is tough love, and now families all over the world will be getting a dose of it when her new show, Jo Frost: Nanny on Tour debuts Jan. 28 on UPtv.

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On the upcoming series, Frost will tour on a bus and visit different countries around the globe to improve the lives of families struggling with child rearing, but now Frost has her sights on possibly having her own children to care for.

"I am ready [to have children]," Frost said. "This doesn't stop the work that I do, and I will be a working mother. So I'll let you know, I guess, when I'm pregnant."