The influencer added that they'll be "back and forth" from Sydney, Melbourne and Adelaide to catch up with friends and family, as well as do some work projects.
Sam's news received plenty of support from her nearest and dearest.
Fellow Summer Bay veteran and close friend Sarah Roberts wrote in the comments: "Can’t wait to visit the three of u!!!!"
Meanwhile, Erin Holland penned: "Congratulations beautiful! Bubs is so lucky - hello sunshine!"
Much like her 'iso diaries', Sam has been keeping fans up to date with her pregnancy journey with 'Sam's preggo diary'.
As September came to a close, the celeb candidly shared the uglier parts of the pregnancy, revealing she "threw up so much" that she "wet (her) pants".
"I sat on the bathroom floor crying... all gross in my own spew and pee. Then yelled at my partner as if it was his fault."
She went on to reveal that, in response, Jordie bought her hot chips and gave her a cuddle.
"Reassuring me that I'm doing an amazing job at growing our baby boy."
Sam announced she and her fiancé Jordie were expecting their first child last month.
"There is a tiny human coming soon…everyone act surprised when he inevitably inherits his parent's odd sense of humour," the mum-to-be wrote on Instagram.
WATCH: Sam Frost reveals she is pregnant. (Article continues after video)
She continued: "We don't take ourselves or life too seriously, and we're hoping to teach our tiny one the same values we share… the importance of being unapologetically yourself, always finding the fun and humour in all the small things, and that being kind, loving and empathetic is a superpower.
"Thank you to all our beautiful friends and family who have supported us during this time, you're all excellent secret keepers.
The pair closed the caption, "We are extremely excited and grateful for our tiny miracle.. your mum & dad love you so much already xxxx"
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