Millie Radford, 18, part of the UK's biggest family, has revealed how she was sent cruel messages by trolls hoping her unborn baby daughter would die.

The pregnant teen, one of 22 children of Noel and Sue Radford, is due to give birth to her daughter Ophelia next month.

But the young woman from Morecambe, Lancashire, said vile trolls had targeted her on her personal number.

An account using the fake name Ellie Smith taunted that the mum-to-be was too young to have a child.

The horrific message said: "Hi, too young to have a baby at 18. Hi, hope your baby dies."

Millie and Sue Radford
Millie Radford, left, has revealed she received death wishes from a vile troll

A devastated Millie shared the hurtful message on her Instagram story, MirrorOnline reports.

"Love nice texts like these from random strangers that lie about who they are," she fumed.

Last week the Radfords announced via their family YouTube channel that Millie had gone for her final baby scan.

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Millie Radford Instagram story
Millie, 18, shared the sick message on her Instagram story

"Millie is going for another scan because she is 36 weeks pregnant tomorrow," Sue said.

"This will be the last scan."

Sue drove her daughter down to St Helens in Merseyside to visit Take A Peak, a clinic specialising in ultrasound, 3D and 4D baby scans, LancsLive reports.

Millie wore a face mask to protect herself from Covid-19 as she had her final scan.

Millie Radford
The teen is due to give birth to a daughter, Ophelia, next month

An overjoyed Sue remarked at the size of Millie's baby bump several times.

"I can't believe how big she's got," Millie said.

Using 4D imaging technology, she was also able to get a first look at her baby.

"She's got a really chubby face, hasn't she?!" Millie wrote.

Sue Radford
Sue Radford, from Morecambe, Lancashire, has 22 kids between the ages of four months and 30

The Radfords, who are Britain's biggest family, live in a 10-bed house in Morecambe, Lancashire.

Noel and Sue are parents to Chris, 30, Sophie, 26, Chloe, 24, Jack, 22, Daniel, 20, Luke, 19, Millie, 18, Katie, 17, James, 16, Ellie, 14, Aimee, 13, Josh, 12, Max, 11, Tillie, nine, Oscar, eight, Casper, seven, Hallie, four, Phoebe, three, Archie, two, Bonnie, one, and four-month-old Heidi Rose.

The couple's 17th child Alfie was stillborn on July 6, 2014.

Sue, who fell pregnant with her first child at the age of just 13, regularly updates followers with news of the family on their YouTube channel.