Katie Price reveals she's shrunk back to a size 8 just three weeks after giving birth... but STILL hasn't decided on a name for her baby daughter

She shocked the world by sharing pictures of her tiny post-baby body on her YouGossip page last week.

But Katie Price has revealed she hasn't lifted a muscle to spring back into such incredible shape, crediting the stress she endured during her fifth pregnancy for her weight loss.

The model and businesswoman discovered her husband Kieran Hayler, with whom she also has 12-month-old son Jett, was suffering from 'sex addiction' and had been cheating on her with her close friends Jane Poutney and Chrissy Thomas.

Slender frame: Katie Price showed off her tiny waist and toned thighs in a series of snaps on YouGossip

The feisty star, who has decided to forgive her husband of 19 months, only discovered she was with child when she was six months pregnant and thinks her body has just naturally slimmed down.

 

She explained in her Now magazine column: 'I know people may be surprised but don't forget, I was under a lot of stress during the pregnancy and didn't pile on the weight like I did with Jett.

'I've also been pregnant for nearly two years, so I think my body was ready to start getting back to my natural size.'

Pricey pout: The reality star has insisted she is '100 per cent' not on a diet

Washboard stomach: Katie's post-baby figure will be the envy of new mothers everywhere

Katie claims she's been eating three healthy, balanced meals per day, but has also been scoffing a packet of biscuits every night and an Indian takeaway on the weekends.

Meanwhile, the mother-of-five - who also has children Harvey, 12, from her relationship with Dwight Yorke and Junior, nine, and Princess Tiaamii, seven, from her marriage to Peter Andre - has admitted she still hasn't chosen a name for her baby girl.

The 36-year-old star and Kieran have compiled a shortlist of their three favourite 'unusual' names, but are waiting until they register the birth to decide.

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Strike a pose: The mother-of-five is clearly proud to show off her fantastic figure

She added to Now: 'I've even looked at combining all three [names] but that doesn't work, and we might save one in case we have another baby girl in the future.'

In the meantime, Katie - formerly known as Jordan - and Kieran have nicknamed the baby Little Bean.

The couple have been spending some quality time with their newborn at their Sussex home and recently put on a show of togetherness for their son Jett's first birthday.

Family snap: Katie shared this touching moment from Jett's first birthday with her followers