'The jodhpurs fit!' New mum Luisa Zissman looks remarkably svelte in her jockey gear as she gets back on the horse ONE WEEK after giving birth

Luisa Zissman left fans gobsmacked on Friday when she revealed her remarkably svelte appearance, one week after birth.

The new mum-of-two was dressed in her jockey gear, about to go horse-ridingjust over seven days since welcoming baby Indigo Esme.

And while some were more concerned by her decision to get back on her beloved horse, others remarked at how different she looked in her 'ready to pop' baby bump post, from last week.

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What a transformation: Luisa Zissman looked remarkably different just one week after giving birth to Indigo Esme

'I know she's only a week old,' she said. 'But I can't resist not horse riding for one more day. 

'lets see how this goes I'll prob only last 2mins! AND the jodphurs fit! woohoo #postpartum #horseriding #newborn (sic)'

Fans were quick on the comments, asking 'Were has your belly gone? (sic)' and 'This is my goal for a week after baby has been born!!'  

She was called 'amazing' and 'fantastic' by those in awe of her transformed appearance.

Less than seven days ago: Just last week, Luisa had been complaining about still being pregnant in August as she shared a 'ready to pop' selfie in the same spot

Fellow mums felt for the brunette on the recovery front, however, saying: 'Ouch' and 'That's got to hurt'.

It was only last Tuesday that Luisa was complaining about still being pregnant in August, showing off her bare belly in the same mirror for her Instagram fans.

She wrote: '1 plug gone, 4 sweeps, 1 failed gel induction, 100% effaced, 2cm dilated, 1 night stay in hospital...

'It's August & im still pregnant think I'll look like this forever now, obvs baby loves being in my tummy...'

Fans will know that Luisa certainly doesn't hold back when it comes to communicating with her social media followers, nonethless.

The former Apprentice star admitted she was in a lot of pain from breastfeeding, five days into motherhood for a second time.

Luisa posted an Instagram selfie of her breasts covered in cabbage leaves and iced towels as she got used to feeding again. 

Feeling the pain: Luisa Zissman shared a photo of her swollen breasts on Instagram after giving birth to her second child a few days ago

Sharing the photo on her Instagram on Sunday, Luisa wrote: 'Cabbage leafs and iced towels in plastic bags, the glamorous life of motherhood. Regretting that boob job right about now. #engorged #massivemelons.'

Luisa and second husband Andrew Collins welcomed baby Indigo at London's Portland Hospital last Tuesday.

And like many new mothers' experience, the former Celebrity Big Brother star is finding the first few days of nursing rather painful. 

Sneak peek: Luisa shared a photo of her six-day-old daughter on Instagram, with her face obscured

Flamboyant fashion: The Apprentice runner-up shared a photo of baby Indigo in a bright coloured baby grow

Luisa previously under a breast enlargement operation in 2013, taking her chest from a 32C to a 32E.

Luisa also teased her 414K followers with photos of her newborn - but the little girl's face was obscured in both images.

In one shot of her baby wearing a neon flamingo-print babygrow, Luisa wrote: 'How amazing is this baby gro! Literally fluorescent haha poor baby, probably blinded her.'

Luisa arrived home from hospital on Friday to be greeted by Irish millionaire husband Andrew, 46, and her six-year-old daughter Dixie, from her first marriage to Oliver Zissman.

Ready to pop: Luisa shared a photo of her belly on Instagram just 24 hours before giving birth to Indigo

She announced Indigo's birth on Friday with a photo of the baby's hand, writing: 'She's here! Born Tuesday 2nd August at 9.21pm weighing a very healthy 8.1lbs (where was she hiding in my little bump?!). 

'Daddy won't let me post any pics of her so this is all you'll get, but she's perfect in every way.

'I had a perfect hypnobirth in water, she was born very quickly after a 1hr labour with no pain relief. I love giving birth!! It's the most amazing thing ever!

'Finally home from hospital & enjoying being a family of 4! Oh and her name: Indigo Esme Collins.'

Ready for some sleepless nights: Luisa shared a dark photo of Indigo's crib next to the bed on her first night home from hospital

Luisa revealed in April she was pregnant with her first child with Andrew, who she wed at the Château de la Napoule, a waterside castle on the French Riviera in July 2015.

The pair, who share a 17 year age gap, started dating in late 2013 - a few months after she found fame on The Apprentice - with Andrew proposing with a £1.5million Boodles ring in Paris in October 2014.

She remains on good terms with her first husband Oliver - founder of Totally Fitness - who she split from in 2012 following three years of marriage after he allegedly cheated on her.

Loved up: Luisa and her Irish millionaire husband Andrew Collins married in July 2014 after an 18 month romance