Stella Mickunaite and Filip Gregov are set to split as a pregnancy scare threatens their bond on Married At First Sight. 

In a teaser for Sunday's episode, Stella is shown complaining that her groom fears getting her pregnant. 

'If you're so terrified of making someone pregnant, maybe just do a snip,' Stella says, seemingly referring to a vasectomy, as her tense husband sits beside her. 

The other brides and grooms react with shock, before expert Mel Schilling chimes in: 'Has anyone heard of condoms?' 

'It's reversible!' Stella insists, to which expert Alessandra Rampolla replies, 'But it's a procedure.'

Stella is next shown breaking down in tears and dabbing her eyes with a tissue. 

Stella Mickunaite and Filip Gregov are set to split as a pregnancy scare threatens their bond on Married At First Sight. Both pictured

Stella Mickunaite and Filip Gregov are set to split as a pregnancy scare threatens their bond on Married At First Sight. Both pictured 

In a teaser for Sunday's episode, Stella is shown complaining that her groom fears getting her pregnant

In a teaser for Sunday's episode, Stella is shown complaining that her groom fears getting her pregnant

'If you're so terrified of making someone pregnant, maybe just do a snip,' Stella says, seemingly referring to a vasectomy, as her tense husband sits beside her

'If you're so terrified of making someone pregnant, maybe just do a snip,' Stella says, seemingly referring to a vasectomy, as her tense husband sits beside her

'If I am being honest with myself, and with Filip, this is a break-up,' she says, to the awe of the other contestants. 

'No!' someone cries out, while Filip just sombrely nods. 

Despite the mishap in their romance, it does seem that Stella and Filip managed to survive the experiment.    

Daily Mail exclusively revealed that Stella and Filip are not only still together following Final Vows, but got engaged during one of the most emotional moments the franchise has delivered in years.

An insider has confirmed what viewers are about to see at Final Vows will be one of the franchise's most unforgettable scenes.

'Viewers are going to see one of the most emotional Final Vows moments the franchise has had in years. Filip doesn't just say yes – he drops to one knee,' the insider revealed.

'It wasn't a spur-of-the-moment thing. Filip had been planning it quietly for weeks. He knew Stella was his person,' they added.

In a season marked by implosions and dramatic confrontations, even production was reportedly blindsided.

Despite the mishap in their romance, it does seem that Stella and Filip managed to survive the experiment

Despite the mishap in their romance, it does seem that Stella and Filip managed to survive the experiment 

'The crew were in tears. It completely shifted the energy of the day. No one expected a full proposal at Final Vows,' the source continued.

Filip had apparently made his intentions clear behind the scenes.

'He told producers he didn't want to walk away from this experiment with "just a TV relationship". He wanted a wife.'

'When he pulled the ring out, Stella genuinely froze. It wasn't acting. She had no idea,' the insider said.

Despite the grand gesture, the insider insisted the proposal wasn't about creating a viral television moment.

'It was never about a flashy TV moment. It was deeply personal. He spoke about building a life, not just finishing the experiment.'