Talk about a summer glow! Married at First Sight star Jamie Otis is currently expecting — and the pregnant reality star is baring her baby bump in an itty-bitty bikini!

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The 31-year-old is all smiles alongside husband Doug Hehner as she shows off her growing belly at 30 weeks pregnant with a baby girl.

"Just bumpin around," she captioned the adorable photo of the couple on Instagram.

Six months after losing her son Jonathan through a miscarriage, the reality star and her husband announced in February that they were expecting a rainbow baby and shared their first photo of her bump on the social media platform.

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"First baby bump photo! 11 weeks and I really just look super bloated … not quite a full blown #babybump yet," she captioned the selfie.

The couple made it a point to share the exciting news on social media before the "socially accepted" three months to inspire women who have lost a child or are trying to conceive.

"We as women are told to wait to share you're pregnant until you're in the "clear" (in second trimester). This is supposed to "protect you" since your chances of loss significantly reduce once you reach your second trimester," Jamie wrote. "After I had publicly lost my son — countless women reached out to me to share their story of loss. I received comfort from around the world … but a lot of these women who reached out to comfort me had never had the chance to share and/or talk about their sweet baby who lives in heaven – no one ever knew they were pregnant to begin with."

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She continued, "I feel like it should be each woman's choice whether they want to keep their pregnancy private or shout it from the rooftops! Who made the rule for women to have to wait "just in case?" I know I'm not the first to announce my pregnancy early and I hope I'm not the last."

Jamie also surprised her husband with the pregnancy announcement on their late son's due date, giving him a letter written from his point of view.

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"Dear Daddy, my big brother Johnny told me today was the day he was due to be with you and mommy," the letter read. "He wasn't able to be here so he sent me instead. He doesn't want you to be sad during the holidays without him; instead be happy because he gave me to you! I can't wait to meet you in August. Love, baby Hehner. "

Congrats to the growing family! For more cute pics of Jamie and Doug, click through the gallery below!