'Bachelor' Baby Boom: A Look at the Expectant Reality TV Stars' Relationships

Desiree Hartsock Siegfried is the latest Bachelorette to announce her pregnancy.

But in more recent years, many of the show's stars have found love -- and now, they're starting families of their own.

On Tuesday, it was revealed that season nine Bachelorette Desiree Hartsock Siegfried and her husband one of one year, Chris Siegfried, were expecting their first child in October.

Baby Siegfried is in good company. Two other former "Bachelorettes" are also currently pregnant, as is the wife of a former "Bachelor" star. Here's a look back on how they got here.

Jillian Harris and Justin Pasutto

Jillian Harris placed second in season 13 of "The Bachelor," but had a second chance to find love on television when became the season five star of "The Bachelorette." She accepted a proposal from Ed Swiderski, though they split in 2010. "It was the last thing I wanted to do," she told Us Weekly at the time. "It's terrible to leave because the other person doesn't know what they want." However, a few years later, she found love with Justin Pasutto, and in March, they revealed that she was pregnant with their first baby. "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 [sic] the ring," he wrote on Instagram. "So I came up with the best invention ever for the love of my life. A little baby miracle in her tummy. Words can't express how lucky and blessed we feel."

Ali Fedotowsky and Kevin Manno

Emily Maynard and Tyler Johnson

Catherine Giudici Lowe and Sean Lowe

Desiree Hartsock Siegfried and Chris Siegfried