But it seems that Kerry may have finally turned her life around - professionally, with an Atomic Kitten comeback and personally, thanks to fiancé George Kay.
And as our exclusive holiday pictures show, the pregnant star is clearly looking happier and more content than she has done in years.
Wearing a lime green bikini with her pregnancy curves firmly on display, Kerry, 33, is confidently embracing her fuller figure – as is 34-year-old George!
An onlooker at the luxurious resort in Tenerife tells us: "George could hardly keep his hands off Kerry. He was constantly kissing and caressing her. He was massaging her feet and rubbing her back. She was in heaven – and, clearly, so was he!"
"I have food and a baby in my belly, the best friends in the world, a great job and I'm a very lucky girl. I'm very grateful," she said at the time.
Kerry and George met as teenagers in Warrington but romance only blossomed when they reconnected as adults. They became engaged in Blackpool last year.
Speaking about George last July, Kerry said: "I've never felt more secure and I have no insecurities with George. I feel safe, protected, he's a great step dad. He's too overprotective sometimes. He says, 'You've never had somebody in your life who just cares for you.' I'm not used to that sometimes, you can't do it on your own."
Kerry is already mum to four children: Lilly-Sue and Molly, from her marriage to Brian McFadden, and Max and Heidi from her marriage to Mark Croft.
See more pics and read the full story in this week's Reveal magazine, out now.
Wow! Try REVEAL Mag for FREE on Android tablets!!! Find out more here
Got an iPad or iPhone? Reveal Mag is specially designed to fit!