"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 news to 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 'oh my god Snez are you pregnant?'," he revealed.
Snezana is already mother to 13-year-old daughter Eve from a previous relationship, and she shares Willow with now-husband Sam.
Congratulations to the growing family!
Watch below: Sam Wood and Snezana Markoski chat about their honeymoon plans.