The former popstar has posed naked for a shoot in Closer magazine, recreating Demi Moore's iconic 1991 Vanity Fair cover.
Scott-Lee and her Celeb Air co-star Johnny Shentall already have one son together, 18-month-old Jaden.
Speaking about her new figure, Scott-Lee said: "Being pregnant is such a natural thing, it's so liberating to show off my bump. I even feel sexy! I'll keep these photos to remind me of such a momentous time."
She added: "It's like I've just had a boob job. They keep getting bigger. When I breastfed Jaden they went up to a DD, so I'm hoping for that this time round!"