“MAFS”' Jamie Otis and Doug Hehner Find Out the Sex of One of Their Twins on the Way — See Exclusive Photos

The couple announced they were expecting again in February

Jamie Otis and Doug Hehner are sharing the sex of one of their twins!

On Monday, the Married at First Sight alums revealed that one of their twins is going to be a boy, sharing a few exclusive photos with PEOPLE.

Otis and Hehner, who used SneakPeek Tests to learn that one of the embryos is male, still don't know the other baby's sex, noting that they'll have to wait for an ultrasound or blood test to find out.

For their first sex reveal, the couple tapped Kierstin Papillon, who owns Posh Picnic, to help them with their theme of He or She, What Will Babies Bee? The event included a cake with bees all over it, as well as honey-themed decor throughout the party that stayed on theme.

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Related: Married at First Sight's Jamie Otis and Doug Hehner Are Expecting Twins: 'We Are Over the Moon Excited' (Exclusive)

In a few sweet photos, Otis hugged her husband while the two posed with son Hendrix Douglas, 3, and daughter Henley Grace "Gracie", 6, smiling and laughing together.

For the big reveal, Otis and Hehner popped cannons that released blue confetti into the air, cementing the fact that they're having a boy.

Otis announced in February that she is expecting her third baby with Hehner, whom she met and married while filming the first season of the hit Lifetime show. The two shared a video of the exciting news on their family YouTube channel.

"I'm pregnant. After three years. I am pregnant," Otis tearfully said in the video before it switched to her and her husband together.

"I'm a little bit in shock, a lot a bit in disbelief," Otis said. "It is incredible, amazing. We prayed on it," Hehner added.

"It's been a long journey to get here," Otis told PEOPLE exclusively of the couple's happy news. "But I really believe that everything does happen in God's perfect timing."

Later in March, Otis announced that she was expecting twins. "I've always wanted to be a twin mommy," Otis exclusively told PEOPLE. "My little sister and brother are twins, but my mom said it'd skip my generation and go to my kiddos, so I never expected I'd end up with twins!"

"After 3+ years of trying, we didn’t think we could be any more excited than simply finding out we are finally pregnant again and the pregnancy is healthy," shared Otis. "BUT TWO! We are over the moon excited (and a wee bit scared! Ha!)"

In a video shared to their family channel, Otis and Hehner revealed how "exciting" their "big news" is. The video then cut to the couple telling Hehner's mother that they're expecting. The next clip included Otis arriving at Hello My Baby for a 3D ultrasound.

As soon as the technician began the ultrasound, Otis spotted the two sacs and whispered, "Are you kidding me? Oh my God, is it twins?"

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