Natasha, who starred on the 2012 series of CBB, is already a mum to two sons and is due to give birth to her third child in less than two months.
She confirmed her baby news on Twitter and also shared several pictures of her blooming baby bump. But it seems Natasha is struggling.
Earlier this week, Natasha tweeted: "Oh yeah I remember this bit... Get in bed shattered... Lie awake ALL night.. Get out of bed... Carry on with day... #3rdtrimester."
Alongside a recent picture of herself relaxing on the sofa, Natasha also told her followers: "Date night, meal out & cocktail... Back home the settee with quilt for 7:30!!! Beltin!! #pregnantnightsout #firsteverselfie."
The reality star, 31, is expecting her baby boy with her partner Mark Smith, who she reportedly met through her brother.
Natasha hit the headlines in 2011 when it emerged that she'd had an affair with her brother-in-law, footballer Ryan Giggs. Soon after, Natasha and her husband - Ryan's brother Rhodri - divorced.
In an apparent effort to distance herself from the scandal, Natasha is believed to have reverted back to her maiden name Natasha Lever.
Celebrities who have announced pregnancies in 2012:
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