Ant Ansteadgot an extra jolt alongside his caffeine one morning, thanks to wifeChristina.

In this week’s issue of PEOPLE, on newsstands Friday, the pregnantFlip or FlopandChristina on the Coaststar revisits the funny moment she told her new husband that he was going to be a dad again.

“So I ran out to tell [Ant] and he wasn’t there. I don’t know where you were, you were in the bathroom or something,” she addresses her husband. “He always makes coffee in the morning, so I just chucked the pregnancy test in the coffee cup because I didn’t know whatto do and I wanted to surprisehim, and I ran around the corner.”

“I thought it was a thermometer,” Ant, 40, tells PEOPLE of his initial reaction to the gesture. “I was thinking, ‘Is the coffee machine broken?’ ”

Justin Coit

Christina Anstead Family

Christina Anstead

And according to the dad-to-be, “Five’s a good number” of children, though the couple can’t help recalling the shock of first learning they would be parents together.

Christina Anstead and Ant Anstead

“It was a massive shock, but you were right about holidays,” the British television presenter tells Christina of theirpost-wedding Bora Bora getaway. “When you go on holiday, you completely relax, right? And when you relax, you start to be in tune with yourself.”

“We were writing down … bucket-list destinations, andthen landed on our honeymoonand straightaway she completely went 180 and was like, ‘Well, actually, no, I don’t want to travel this year,’ ” Ant adds. “And yet, now that we know, you are absolutely nesting.”

Christina admits she didn’t want to tell her kids about the pregnancy during the first trimester because of the increased “risk” of something going awry —but she started showing “really early”this time, and her daughter knew something was up immediately.

For more from Christina Anstead, pick up the latest issue ofPEOPLE, on newsstands Friday.

source: people.com