Sharing a photo of her top moments from the show, she wrote: 'Gutted to hear this is bbuk last series!! Isabelle also reflected on her time in the house ahead of the 2018 series starting, saying she was 'gutted' to hear that Big Brother would not return to screens.
Posing in a tiny mini dress and white blazer, Isabelle proudly showed off their scan picture while Mike held onto their adorable pet dog.
The beauty is thought to be approaching her due date as she revealed in the middle of November she was 32 weeks pregnant and struggling with insomnia.
She shot to fame after winning Big Brother back in 2017.
Isabelle Warburton looked sensational as she revealed her blossoming baby bump while out on a shopping trip with her beau Mike Chung in Tier 2 Warrington on Sunday Isabelle appeared to be in great spirits as she cradled her bump and enjoyed a spot of baby shopping.