“Little People, Big World”
“Little People, Big World” Season 12 will feature Audrey and Jeremy Roloff’s pregnancy announcement as well as news about Zach and Tori Roloff’s baby. TLC

Zach and Tori Roloff are relishing in pre-baby bliss. The “Little People, Big World” couple are set to welcome a baby boy together in May. The pair may be over-the-moon about becoming parents, but they’re also experiencing anxiety.

A trailer for Season 12 of their TLC reality show previews their biggest baby fears. In the sneak peek, Zach reveals to mom Amy Roloff that his son is “measuring below average.”

“What am I going to say? ‘Oh yeah, I want a dwarf baby? I can’t wait for that kid to be bullied,’” Zach tells his mom (via People).

Still, Zach and his wife’s excitement is unfaltering. In another portion of the “Little People, Big World” Season 12 trailer, they announce their due date. While putting together a crib for their son, Zach reveals that their baby’s coming in spring.

“Tori’s pregnant. We’re going to have a baby in May!” he exclaims. “I’m feeling prepared. I’m ready!”

The “Little People, Big World” couple have shared many updates with fans, but have been quiet about the baby’s due date. On March 23 Tori shared a photo of her belly in which it was clear she’s about ready to pop. Tori told fans she had been nesting and experiencing “lots of baby Hiccups!”

Before that, while enjoying a babymoon in Hawaii, Tori shared a picture at 28 weeks. The “Little People, Big World” star revealed her cravings, the size of her baby boy and more. Jeremy and Audrey Roloff, who are also expecting, joined the couple on their trip.

Zach’s twin brother and his wife announced the sex of their baby following a gender reveal party. The couple are expecting a baby girl, which they’re thrilled about. They shared photos from the big reveal with followers.

“Little People, Big World” premieres Tuesday, May 2 at 9 p.m. EDT on TLC.