The couple already have two sons together and are now looking forward to doubling their brood in the coming weeks.
While waiting for her babies to arrive, Kerry - who married Scott the day after 5ive split in 2001 - has shared an adorable picture of her blooming baby bump.
In the sweet snap, the couple's son Kavan is resting on Kerry's tummy as they snuggle together on the sofa.
Tweeting it to her fans, Kerry commented: "With my little man he's going to be a fab big brother :) #lovehim."
Meanwhile, it seems Scott and Kerry are having trouble thinking up names for their new arrivals.
In a conversation with Kerry Katona - who starred with Scott in The Big Reunion and who is also pregnant - the girls discussed the issue on Twitter.
Kerry K tweeted: "Me and @mrgsjkay can not agree on a name for are baby girl...would love to hear some ideas..please help!!! Xxxx."
Kerry R then replied: "We are having the same problem and got to find 2! Good luck ;) xx."
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