The 27-year-old is expecting her first baby with boyfriend Casey Cody Johnson, and despite sharing their impending arrival’s gender with their family and friends at their elaborate party, had both said they wanted to keep it under wraps from the public.
But a series of social media posts uploaded by guests at the ‘do seem to have given some pretty obvious clues about whether they’re expecting a boy or a girl.
With the pink confetti, accessories and guests’ outfits, we’re pretty sure that the happy couple are having a girl.
BUT – the plot thickened when one guest uploaded a pan of the venue and revealed smatterings of blue confetti among the pink.
Could they be having TWINS?
Equally, the multicoloured graffiti could just be a deterrent from nosey media types like us ruining the surprise – but we guess we’ll just have to wait and see.
Guests at the party included plenty of Marnie’s reality TV pals, with the likes of Lauren Goodger, Chloe Ferry, Nathan Henry and Marnie’s big cousin Sophie Kasaei all turning up to support the parents to be.
Check out all the expectant celebs in 2019...
Benedict Cumberbatch and Sophie Hunter
Sherlock actor and his theatre director wife Sophie Hunter are expecting their third child together in March 2019. Although neither of them have officially confirmed the news, Sophie is thought to have had her dress custom-made to accommodate her baby bump.
Marnie Simpson drops huge hint she's having TWINS at star-filled gender reveal party
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Storm and Ronan Keating
Boyzone singer Ronan Keating and his wife Storm are expecting their second child together in 2020. The pair announced their lovely news on social media in November, writing, 'Another little Keating on the way ♥️'.
Benedict Cumberbatch and Sophie Hunter
Sherlock actor and his theatre director wife Sophie Hunter are expecting their third child together in March 2019. Although neither of them have officially confirmed the news, Sophie is thought to have had her dress custom-made to accommodate her baby bump.
Gary Beadle and Emma McVey
Geordie Shore's Gaz Beadle and his model girlfriend Emma McVey announced that they're expecting their second child together in June 2019, 18 months after welcoming son Chester! Taking to Instagram, Gaz shared a photo of the baby scan with the caption, 'BABY NO 2 😮😮😮 WE MUST BE MAD.... joking wow so nice to finally let everyone know baby no 2 will be with us later this year and I am SOOOOOOOO EXCITED Chester changed my life and now to give him a brother or sister is just amazing I was so nervous with Chester but now it's just excitement... @emma_jane1392 💙❤️.' sic
Emma also shared the photo, writing, 'We can finally share our amazing news. Baby number 2 on the way ❤️👶🏼 I'm so excited for Chester to have a brother or sister and make our house a little bit more crazy! 🐶🐶👶🏼👶🏼🤰🏻🤷🏻♂️ @gazgshore.' sic
The pair have since revealed they are expecting a little girl, making their family complete!
Casey Batchelor
Casey Batchelor revealed in July 2019 that she's expecting her second child with fiancé Dane Goodson! The Celebrity Big Brother star, who welcomed first baby, daughter Florence, with Dane in May 2018, spoke to Closer magazine, "I'm going to have two babies 20 months apart… I can't quite believe it!" the 34-year-old said. "It'll be tough, but I'm going to ride the storm – we're just so thrilled we're having another baby."
Anna Williamson
Congratulations are in order for Celebs Go Dating star Anna Williamson, who announced in July 2019 that she's pregnant with her second child!
Rachel Riley and Pasha Kovalev
Countdown star Rachel Riley and her Strictly Come Dancing husband Pasha Kovalev announced their first pregnancy in May 2019. Rachel took to social media with a photo of herself cradling her tummy and a Countdown conundrum on the board which spelled out 'maternity'. She wrote, 'We're over the moon excited!'
Lucy-Jo Hudson
Hollyoaks actress Lucy-Jo Hudson took to Instagram on 12th August 2019 to announce her pregnancy with new boyfriend Lewis Devine. Sharing a photo of a baby scan being held by Lucy-Jo, Lewis and Sienna Rae - her daughter with estranged husband Alan Halsall - Lucy-Jo wrote, 'This has been so hard to keep quiet 🤫 but today was the day @lewisdevine and I got to tell Sienna the best news!!! We are 13 weeks pregnant and so very excited to extend our little family....
'Sienna is so excited to be a big sister.... and Lew is ecstatic to become a daddy for the first time and I am so happy to be having another gorgeous baby! No other feeling like it 💗💙 .' sic
Lewis shared the same photo and wrote, 'I don't know how we've kept this quiet 👶😬 My gorgeous @lucyjo_hudson is 13 weeks pregnant and I couldn't be happier to become a Dad for the first time... seeing little siennas face this morning was unbelievable shes so excited and can't wait to become a big sister... We cant wait to meet little Baby Devine 💖💙.' sic
Ryan Thomas and Lucy Mecklenburgh
Just two months after announcing their engagement, former TOWIE star Lucy Mecklenburgh and former Corrie actor Ryan Thomas announced they were expecting their first child together .
Jamie and Rebekah Vardy
Former I'm A Celeb star Rebekah Vardy confirmed she's expecting her fifth child with her footballer husband Jamie Vardy.
The new addition that's due early next year will be Rebekah's fifth biological child and Jamie's fourth.
Melissa Suffield
Ex-EastEnders actress Melissa Suffield announced in September 2019 that she's expecting her first baby with fiancé Robert Brendan three months after announcing her engagement!
Ola and James Jordan
Former Strictly Come Dancing couple Ola and James Jordan are expecting their first baby together! The couple, who have been married since 2003, have opened up about their fertility struggles and their happiness at becoming pregnant after going through IVF. They're thought to be due in March 2020.
Millie Mackintosh
Former Made In Chelsea star Millie Mackintosh announced she was expecting her first child with co-star and husband Hugo Taylor in November 2019. At the time of the announcement, Millie also revealed she's expecting a baby girl.
Storm and Ronan Keating
Boyzone singer Ronan Keating and his wife Storm are expecting their second child together in 2020. The pair announced their lovely news on social media in November, writing, 'Another little Keating on the way ♥️'.
Benedict Cumberbatch and Sophie Hunter
Sherlock actor and his theatre director wife Sophie Hunter are expecting their third child together in March 2019. Although neither of them have officially confirmed the news, Sophie is thought to have had her dress custom-made to accommodate her baby bump.
Gary Beadle and Emma McVey
Geordie Shore's Gaz Beadle and his model girlfriend Emma McVey announced that they're expecting their second child together in June 2019, 18 months after welcoming son Chester! Taking to Instagram, Gaz shared a photo of the baby scan with the caption, 'BABY NO 2 😮😮😮 WE MUST BE MAD.... joking wow so nice to finally let everyone know baby no 2 will be with us later this year and I am SOOOOOOOO EXCITED Chester changed my life and now to give him a brother or sister is just amazing I was so nervous with Chester but now it's just excitement... @emma_jane1392 💙❤️.' sic
Emma also shared the photo, writing, 'We can finally share our amazing news. Baby number 2 on the way ❤️👶🏼 I'm so excited for Chester to have a brother or sister and make our house a little bit more crazy! 🐶🐶👶🏼👶🏼🤰🏻🤷🏻♂️ @gazgshore.' sic
The pair have since revealed they are expecting a little girl, making their family complete!
Casey Batchelor
Casey Batchelor revealed in July 2019 that she's expecting her second child with fiancé Dane Goodson! The Celebrity Big Brother star, who welcomed first baby, daughter Florence, with Dane in May 2018, spoke to Closer magazine, "I'm going to have two babies 20 months apart… I can't quite believe it!" the 34-year-old said. "It'll be tough, but I'm going to ride the storm – we're just so thrilled we're having another baby."
Anna Williamson
Congratulations are in order for Celebs Go Dating star Anna Williamson, who announced in July 2019 that she's pregnant with her second child!
Rachel Riley and Pasha Kovalev
Countdown star Rachel Riley and her Strictly Come Dancing husband Pasha Kovalev announced their first pregnancy in May 2019. Rachel took to social media with a photo of herself cradling her tummy and a Countdown conundrum on the board which spelled out 'maternity'. She wrote, 'We're over the moon excited!'
Lucy-Jo Hudson
Hollyoaks actress Lucy-Jo Hudson took to Instagram on 12th August 2019 to announce her pregnancy with new boyfriend Lewis Devine. Sharing a photo of a baby scan being held by Lucy-Jo, Lewis and Sienna Rae - her daughter with estranged husband Alan Halsall - Lucy-Jo wrote, 'This has been so hard to keep quiet 🤫 but today was the day @lewisdevine and I got to tell Sienna the best news!!! We are 13 weeks pregnant and so very excited to extend our little family....
'Sienna is so excited to be a big sister.... and Lew is ecstatic to become a daddy for the first time and I am so happy to be having another gorgeous baby! No other feeling like it 💗💙 .' sic
Lewis shared the same photo and wrote, 'I don't know how we've kept this quiet 👶😬 My gorgeous @lucyjo_hudson is 13 weeks pregnant and I couldn't be happier to become a Dad for the first time... seeing little siennas face this morning was unbelievable shes so excited and can't wait to become a big sister... We cant wait to meet little Baby Devine 💖💙.' sic
Ryan Thomas and Lucy Mecklenburgh
Just two months after announcing their engagement, former TOWIE star Lucy Mecklenburgh and former Corrie actor Ryan Thomas announced they were expecting their first child together .
Jamie and Rebekah Vardy
Former I'm A Celeb star Rebekah Vardy confirmed she's expecting her fifth child with her footballer husband Jamie Vardy.
The new addition that's due early next year will be Rebekah's fifth biological child and Jamie's fourth.
Melissa Suffield
Ex-EastEnders actress Melissa Suffield announced in September 2019 that she's expecting her first baby with fiancé Robert Brendan three months after announcing her engagement!
Ola and James Jordan
Former Strictly Come Dancing couple Ola and James Jordan are expecting their first baby together! The couple, who have been married since 2003, have opened up about their fertility struggles and their happiness at becoming pregnant after going through IVF. They're thought to be due in March 2020.
Millie Mackintosh
Former Made In Chelsea star Millie Mackintosh announced she was expecting her first child with co-star and husband Hugo Taylor in November 2019. At the time of the announcement, Millie also revealed she's expecting a baby girl.
Storm and Ronan Keating
Boyzone singer Ronan Keating and his wife Storm are expecting their second child together in 2020. The pair announced their lovely news on social media in November, writing, 'Another little Keating on the way ♥️'.
Décor was kept classy with white and gold balloons and Marnie matched her surroundings, wearing a white dress and clutching (another clue alert) a mini pink handbag.
"I don’t think you’re ever ready until it happens, but we’re so excited,” said Casey in an interview with OK! magazine, “it feels amazing."
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But Marnie isn’t QUITE so excited about one aspect of having a child – the birth. "I can't even talk about it, I get so scared,” she said. Fair enough – but we personally cannot WAIT for this G Shore baby.
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