By Emily Sheridan

PUBLISHED: 02:56 EST, 17 May 2012 | UPDATED: 03:31 EST, 17 May possibly 2012

Just 24 hours earlier, she was spotted hunting pale, unhappy and frazzled.

But something seems to have put the smile back on Chantelle Houghton as she went partying in London last night.

The heavily pregnant reality star, 28, looked beaming as she arrived solo at the Pearlys Specialist Teeth Whitening launch at the Sanctum Soho Hotel.

Happy once again: Reality Tv star Chantelle Houghton proudly shows off her bump at the Pearlys launch party at the Sanctum Soho Hotel

Although her fiancé Alex Reid was nowhere to be observed, it didn’t seem to bother the former glamour model, who was in excellent spirits as she chatted to fellow celebrities and journalists at the party.

At the moment eight months pregnant, Houghton showed off her big bump in a Lycra top, which she teamed with a pair of shiny leggings and an orange blazer.

Her night out came a day following she was photographed looking tired and stressed outside her Essex residence on Tuesday.

Not so happy: Chantelle looked miserable on Tuesday

It’s been a stressful few months for Houghton with her coping with becoming heavily pregnant and getting the couple’s new residence prepared for the baby even though Reid is spending most of his time on the road on the Wildboyz tour.

She also had a scare when she identified out she had an irregular heartbeat – Supraventricular Tachycardia, which is a comparatively widespread condition throughout pregnancy.

Each Houghton and Reid have defended their relationship in current weeks, but admitted their wedding plans are on hold for now.

On Tuesday, she wrote a cryptic message on her Twitter page: ‘Karma is a bitch and I’m so glad it is cos folks only find out how a lot of a bitch it is when its as well late and they’ve hurt u.’

And in her magazine column this week, she admitted she was disappointed that Reid had spoken about his marriage to Price tag and her recent engagement to Leandro Penna.

She wrote in her New! column: ‘To be sincere with you, it wasn’t great to read.

‘They had been together so extended ago and both of them have moved on with new partners, so it seems a shame to rake up old ground.

‘Also this week, one more mag claimed that Alex and I sleep in separate bedrooms, which is absolute rubbish.

‘He’s been away with the WildBoyz tour, but when he’s at house, he’s certainly in bed with me!’

The couple only celebrated their 1st year anniversary last month, but currently hit a rocky patch in March when Reid sent private Twitter messages to model Amy Willerton – former protogee of his ex.

A lot to smile about: Chantelle is expecting a baby girl subsequent month

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This color block outfit is super cute and would work nicely for a laid back cocktail party. We like the contrast of the black capped sleeves against the electric blue top. The black pleated skirt with fitted button fastened waist completes this polished appear perfectly.

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