Former 'TOWIE' star Sam Faiers is expecting her third child.

Paul Knightley and Sam Faiers are expecting their third child together

Paul Knightley and Sam Faiers are expecting their third child together

The 30-year-old reality TV star and her long-term partner Paul Knightley - who already have son Paul Jr, five, and daughter Rosie, four - are expanding their family, with Sam due to give birth next Spring.

Posting an adorable black and white photo of herself with Paul and her two children kissing her bump on Instagram.

Sam captioned the snap: "Soon to be a family of 5

"We have a spring baby on the way

"We’re so happy and feeling blessed (sic)"

Sam also revealed that she and Paul will not be finding out the gender of the tot, adding: "PS keeping this little one a surprise."

'The Mummy Diaries' star's social media page was flooded with congratulatory messages from her famous friends.

'Love Island' star Amber Davies wrote: "Oh Sam I had a feeling!!! I am so happy for you."

Sam's one-time 'The Only Way Is Essex' co-star Lucy Mecklenburgh - who is expecting her second child with former 'Coronation Street' actor Ryan Thomas - commented: "Congrats to u all (sic)"

'Celebs Go Dating' star Anna Williamson replied: "Ahhhhhhh Sam huge congratulations (sic)"

In an episode of 'The Mummy Diaries' - the ITVBe show on which she appears with her sister Billie Faiers - which aired back in March, Sam told Paul that she wanted another baby, sooner rather than later.

Sam told Paul: "If a third baby comes along, breastfeeding, co-sleeping, we don't want too much of a big gap."

But Paul replied: "I'm not having another baby yet."