The Married at First Sight stars revealed the exciting news via Instagram on Friday, with a stunning shot of themselves posing outdoors in front of pink balloons.
"It's a GIRL," the pregnant reality star, chic in a pink dress, captioned it. "We are so thankful for this sweet, sweet baby GIRL rolling around happily inside me. Her big brother, Johnathan, has been watching over her and keeping her safe. We love them both more than words could ever express."
This is technically the couple's second child. The two were expecting a son, Johnathan, but lost him
four months into Otis' pregnancy last July.
"I was so shocked," Otis said during an interview with People
, who first revealed the gender of their baby. "I was pretty certain it was another boy. If you follow the old wives' tales, I had no symptoms of [having a] girl."
"I've always wanted to have that mother-daughter relationship that I kind of missed out on with my mom," she continued. "I secretly hoped to be a mommy to a little girl and to have a little mini me."
For Hehner, he told the outlet he was less focused on the gender of the baby, and more concerned about its health.
"I am still cautious and it was tough in the beginning to get excited," he explained. "[But as the weeks] pile on and I see the baby bump get bigger and bigger, I cannot stop smiling!"
Congrats to the happy couple!