Desiree Hartsock’s Valentine's Day in Maui with husband Chris Siegfried was made for TV, right down to the big twist: a positive pregnancy test. The season 9 Bachelorette, 30, sat down exclusively with Us Weekly Video to recall the moment.

“I kind of knew, like, ‘You know something, I think I’m pregnant,'” she admits. “We were in Hawaii, when we went for our one-year anniversary. That’s when we took a test and found out!”

Since that moment, Siegfried, 30, has aced the role of doting dad-to-be. “I get her whatever she needs,” he tells Us.

The author of My Fairytale Wedding (out May 17) admits that can be quite the task. “Each day is something new. Like one day I’m like, ‘Babe, I really need Italian.’ And then the next, it’s Mexican and the next it’s dessert for dinner,” admits the Seattle-based designer, due this fall. “He’s just so supportive and if I’m craving ice cream, he’s like, ‘OK, let’s go get it!’”

To learn more about their baby prep (and whether they know the gender!) watch the video above. 

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