Britain's biggest family is about to get even bigger! The Radfords are delighted to announce their 21st baby - a girl - is on the way (and they're still raising their children without ANY benefits cash)

Mother Sue Radford is welcoming her 21st baby, and this time it will be a girl 

They announced the news in a video blog on their YouTube channel 

Mrs Radford and her husband Noel uploaded a picture of the ultrasound scan 

The couple vowed that their last child, born in September, would be their last 

Britain's biggest family is set to grow again after mother Sue Radford announced she is pregnant with her 21st child.

Mrs Radford uploaded a video message on YouTube to announce they will be welcoming yet another baby girl into their huge brood.  

The 43-year-old last gave birth in September last year, and she promised at the time that it would be her last.

But they have revealed she has fallen pregnant yet again, and uploaded an image of the baby scan on Instagram.

The Radford family uploaded this image of a baby scan on Instagram as they announced they had another child on the way

Back row 1. Luke 17; 2. Chloe, 22; 3. Millie, 16; 4. Katie, 15; 5. Chris, 29; 6. Sophie, 24; 7.Hallie two (in her big sister Millie’s arms). Middle row, left to right: 8. Daniel, 19; 9. Ellie, 13; 10. Phoebe, 22 months (in Dad Noel’s arms); 11. Archie, eight months (cuddled by Mum Sue); 12. Josh, ten; 13. Jack, 21. Front row, left to right: 14. Aimee, 12; 15. Tillie, seven; 16. Max, nine; 17. Casper, five; 19. James, 14; and still very much part of the family in spirit is Alfie, who is stillborn. 

The couple announced the sex of their next baby by firing paper cannons in the sky, showing pink streamers

The couple also uploaded a video message on YouTube where they revealed they would be welcoming a baby girl

Mrs Radford and her husband Noel, 47, who live in Morecambe, Lancashire, wrote: 'We can’t wait to welcome you into the family precious little one..#soblessed.'

The video shows the family revealing the sex of their next baby as they arrive home from the hospital.

Surrounded by their children, they fire confetti cannons into the air, with pink paper streamers falling from the sky.

After showing off her baby bump to the camera Mrs Raford said: 'I honestly can't believe it.

'Normally I have an inkling of what the gender is going to be. I honestly thought it was going to be boy. 

The family posted a YouTube video to announce their baby news, and showed off the pic of the baby scan

Mrs Radford showed off her baby bump during the video before they revealed the sex of their new arrival

Mr Radford adds: 'We're just in shock.'   

After she gave birth to her 11th son Archie in September after an hour's labour she said she was happy to stop on a 'nice even number.' 

Speaking at the time Mr Radford, said: 'It was going to end at some point. 

'We both think this is it. I feel sad in a way but now we can get on and enjoy the kids.' 

The couple also announced their last baby news by posting the ultrasound picture on social media.

Sue and Noel Radford welcomed their twentieth baby - a son called Archie - in September last year

Mrs Radford celebrating the first birthday of her 19th child, daughter Phoebe

The couple, from Morecambe, Lancashire, first met when Sue was just seven years old.

They had their first child, Chris, 28 years ago, when Sue was aged only 14. The couple decided to keep the baby as they were both given up for adoption at birth.

The couple then moved into their first home together and got married. Shortly afterwards they welcomed their second child, Sophie, when Sue was 17. 

Mrs Radford lost a boy, Alfie in 2014, who was stillborn, but he is still very much part of the family. 

In July 2016 they welcomed baby number 19, Phoebe, and well-wishers sent the couple messages to congratulate them.

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Mrs Radford (pictured with her children on holiday when they appeared on a Channel 4 documentary said after their last child that she was happy to stop on an 'even number'

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The family have also made regular TV appearances, including 

Their new arrival will join Chris, Sophie, Chloe, Jack, Daniel, Luke, Millie, Katie, James, Ellie, Aimee, Josh, Max, Tillie, Oscar, Casper, Hallie, Phoebe, and Archie. 

A whole lot of mouths to feed! The Radford family's budget

The couple receive £170 per week in Child Benefit and survive on Noel's just under £50,000 salary.

They spend around £300 a week on food shopping and carefully plan their batch-cook to make sure it feeds everyone. 

The shopping list includes:

• 18 pints of milk
• Three litres of juice 
• Three boxes of cereal being consumed every day

They have a budget of £100 for their children's presents at birthdays, while at Christmas they set aside between £100 to £250. They became grandparents when their daughter Sophie gave birth and she has gone on to have three children.

The family now live in a large £240,000 Victorian house, a former care home, that they bought 11 years ago and they pride themselves on having no credit cards or finance agreements. They also enjoy a holiday abroad every year.

They spend £300 a week on food shopping, with 18 pints of milk, three litres of juice and three boxes of cereal being consumed every day.

When it comes to celebrating their children's birthdays they have a budget of £100 for presents, while at Christmas they set aside between £100 to £250.

Her husband had a vasectomy during his wife's ninth pregnancy but had it reversed when they decided to have more children.

In 2013, the couple starred in the Channel 4 show, 16 Kids and Counting and were filmed in their ten-bedroom home.

The following year, Mrs Radford - who does not receive state handouts apart from child benefit, lost a boy, called Alfie, when she was 23 weeks' pregnant. 

A DAY IN THE LIFE OF THE RADFORDS: HOW BRITAIN'S BIGGEST FAMILY SPENDS A TYPICAL DAY  

After an early start in the bakery, Mr Radford returns home every day at 7.45am to sort out the children and get them to nursery at school.

All their uniforms are washed and laid out the night before, while breakfast is staggered into two shifts. 

Six of the children are at the same primary school ten minutes away and five are at secondary school. Noel drives them in a minibus which, as it carries more than nine passengers, is entitled to use bus lanes.

Meanwhile, the three youngest, Oscar, Caspar and Hallie, remain at home with Sue, though Oscar goes to nursery in the afternoons.

The family do nine loads of washing a day, get through 30 bottles of washing liquid every month and use four toilet rolls a day.

Incredibly they manage to feed the family on £300 a week, feeding them all pasta or a large stew using deals with their local butcher and greengrocer.

Bathtime at home begins around 6pm and while the younger ones will be bathed and in bed by about 7pm, the older ones stay up until 9pm. 

Mr and Mrs Radford say they are in bed by 10pm.