Sister WivesstarMaddie Brown Brushand husbandCaleb‘s second child on the way will be a girl, they reveal exclusively to PEOPLE.
“We are both extremely excited!” the couple tell PEOPLE of giving their 22-month-old son a sister.
TLC/Jesse Presler

Caleb says he “was extremely surprised” upon learning he wasexpecting a daughter because“I just had it in my head it would be a boy.”
“I made the ultrasound tech check three times,” the second-time dad-to-be recalls. “I am really excited and nervous to have a little girl.”
Maddie Brown Brush and husband Caleb.

As for Maddie, 23, she was “surprised” about having a girl but “had no idea” either way up until the moment the couple learned the news.
“I went back and forth so much. I am way excited though,” she says, sharing that “Caleb’s family wasreally surprised and extremely excited” while hers “was a 50/50 split of people who guessed girl and people who guessed boy.”
“My mom was so excited and shocked, she got a little teared up. Something about a girl I guess,” Maddie adds.
As for the big-brother-to-be? “Axel doesn’t really understand yet, so we are sure he will just be happyto have someone to play with,” she tells PEOPLE.
Axel, however, might “be a little jealous at first” considering his parents’ “world revolves around him right now and that’s changing just a touch.”
“He’ll have to share, which he’s good at, but I’m not sure about everything,” Maddie explained. “I think once he warms up he will be reallyhappy to have another sibling.”
Sister Wivesairs Sundays at 8 p.m. EST/7 p.m. CST on TLC.
source: people.com