Sam Wood and Snezana Markoski might have secretly gotten married on their babymoon

Sam Wood and Snezana Markoski, who fell in love when they met on 2015's The Bachelor, have sparked rumours they've secretly tied the knot.

The engaged pair have been babymooning in Hawaii as they prepare for the birth of their child, and after an Instagram story that Sam, 37, shared, tongues are wagging.

The photo shows the Melbourne-based couple kissing underneath an archway and the caption: "You may now kiss the…"

Sam proposed to Snez, 37, with a $50,000 diamond ring in December 2015, and on Mother's Day this year, the happy couple announced they were expecting a baby.

"We're so excited to be able to let the world know that our little family of three is soon to become four."

While Sam will be a dad for the first time, Snezana has a daughter from her previous marriage, twelve-year-old Eve.

Sam and Eve seem to be close, with the fitness expert regularly sharing photos on Instagram of the pair having fun.

The news meant that the couple had to postpone their wedding plans until after Snez gave birth. But now the question on everybody's lips is, did they wait at all?

Snezana, who has a degree in molecular genetics and biotechnology, is due to give birth in a few weeks.

An excited Sam shared a photo of his "glowing" fiancée's bump on Saturday, which showed Snez in a black two-piece bikinie while she relaxed by the pool.

"Oh, could she look any more beautiful?" he captioned the image.