"We are very excited to announce that we are expecting another beautiful little baby," he wrote.
"Snez is seriously starting to show and it's a little hard to keep the secret any longer."
The couple also shared the exciting announcement via Instagram.
"I know that a lot of people do beautiful reveals of baby genders and they're having a baby, and don't get me wrong I think that's really cute, and maybe because this is number two or really number three, that we don't get to as much effort anymore," Sam said on his Instagram stories, before panning the camera over to Snez.
"There reason we did it now is because we posted a photo on Instagram and about 500 people have gone 'omg Snez are you pregnant?'," he revealed.
He also shared the first photo of Snezana's bump:
Their baby news comes less than three months after they tied the knot in a stunning Byron Bay wedding ceremony.
Sam and Snez are parents to little Willow, and Eve, Snezana's daughter from a past relationship.
Congratulations to the growing Wood family!
This article originally appeared on WHO