Model Katie Price gave birth to her fourth child Jett last August, and the 35-year-old is reportedly shocked to discover she is already six months pregnant with her fifth baby.

According to The Sun, the wife of Kieran Hayler conceived again last November, but only recently discovered the news after she got unwell while on holiday, reports dailymail.co.uk.

She reportedly suffered a series of stomach aches while away on her break with her third husband and four children in Cape Verde last month.

"It's not something they had planned this soon after Jett, but they're still delighted. The news came as a complete shock," said a source.

"Katie's already in her second trimester, so has been pregnant for nearly six months without even realising it. She's due later this summer. Unlike her other four pregnancies, she's yet to have any cravings and is not showing much, either," added the source.

Price is also mother to Harvey, 12, from her relationship with footballer Dwight Yorke, Junior, 9, and Princess, 7, from her marriage to Peter Andre, and Jett, just eight months, with Kieran Hayler.