MARRIED At First Sight star Susan Rawlings has revealed she's given birth to a baby boy.

The Perth truck driver, who was once "married" fan favourite Sean Hollands on the reality show, found out she was pregnant after splitting with an older man she had met online.

Sean and Susan were “married” on MAFS. Picture: Channel 9
Sean and Susan were “married” on MAFS. Picture: Channel 9

Rawlings told Woman's Day that the pair are looking forward to co-parenting their new son, Ashton, who was born on March 24.

"Ashton was unplanned, but I'm very much looking forward to sharing this parenting journey as I'm friends with his father," she said.

Rawlings, 39, also revealed that her labour lasted three days and that she had been trying for a water birth but in the end had to give birth by caesarean.

Once Ashton was born, she said she "loved him selflessly and unconditionally".

"I can't imagine going back to my old life now because I need to be here full-time to watch every new smile and milestone," she said.

Rawlings was a popular cast member on the 2017 season of the controversial reality dating series, but blasted the show's producers and psychologists shortly after it wrapped.

"How do they edit this and completely not give a s**t about people's lives?" she said in an interview with last April. "They don't give a s**t about what others think of these people."

Rawlings also hit out at her TV "ex-husband", claiming he wasn't the nice guy viewers thought he was.

"I wanted to leave halfway through," she said. "His kids were crying to him on Skype, 'Please come home daddy, we don't really know why you're away for so long.' And I said, 'No, you need to go, we're just friends, you need to go'. And he's like, 'Nah, I need the money, I'm going to New Zealand in April on my first overseas trip ever. I need some spending money.'"