A nurse with no womb is expecting her first child - because her selfless sister is carrying her baby as a surrogate.
Laura Knight, 28, suffers from a rare condition that means she has no uterus.
Her sister Hayley Burton offered to help her have a baby – and is now eight-weeks pregnant with Laura's biological child.
Once Hayley, 33, has given birth to her niece or nephew, the baby will head home to be with Laura and her husband David.
The close-knit siblings, who are both nurses at the same hospital, will share maternity leave together too, the Birmingham Mail reports.
"It's our bun in Hayley's oven," said Laura, who is raising awareness of Mayer Rokitansky Küster Hauser syndrome (MRKH), the congenital abnormality that has left her without a uterus.
"She's nurturing it and keeping it safe."
The first-time parents are grateful to Hayley, who is already a mother of two.
Laura said: "Hayley is so selfless, so generous and always said she would do this - always - but always wanted her own children first.
"After having Archie and Harry, she approached myself and my boyfriend at the time, David, and said: 'When you're ready to talk about the future, we'll all sit down and discuss our options.'"
The trio began the surrogacy at Birmingham Women's Hospital in 2019. But due to delays during the pandemic, they decided to continue privately, starting treatment in March this year.
In May, Laura's embryo was fertilised with David's sperm an inserted into Hayley's uterus.
The sisters – who both work at Sandwell Hospital in West Bromwich, were overjoyed when a pregnancy test came back positive.
Laura said: "Hayley came out with a pot of urine and me and David dipped it in. It was just amazing, it came up clear blue within seconds of us dipping it in.
"The placenta's growing, the baby's growing and everything is as it should be at this stage."
Along with Hayley's husband Rich, 34, the couples say the surrogacy has been a positive experience.
"Surrogacy is not something that's sick or weird, it's not like my husband's gone and slept with my sister," Laura said. "It's my egg and his sperm. All it's depended on is science and luck and hope.
"We've not had anyone slate us and say it's weird so far."
Laura, David and Hayley, from Dudley, have been sharing updates via an Instagram account to inspire others and offer hope to young girls with Laura's condition, which affects one in 5,000 women..
Her diagnosis with MRKH came after tests on her reproductive system following concerns she had not started her period by the time she was 15.
"I kept going to the GP and he was saying I was underweight. My mum was concerned - she was taking me back about every three months," Laura explained.
"They sent me for an ultrasound but it wasn't urgent, they just said my ovaries were very small, but nothing else.
"My mum didn't know if they'd found something sinister. She didn't sleep for weeks because she didn't know what the hell was wrong with me.
"She kept putting pads in the bottom of my schoolbag in case I came on at school. We'd had the discussion about the birds and the bees and my friends were coming to school and all saying they'd started.
"I went through a point where I actually told them I had, because I was too embarrassed to say I hadn't."
After a few months and a trip to A&E for a separate problem, doctors began to join the dots.
Laura explained she'd had tests on her reproductive system and was fast-tracked for more emergency tests at Sandwell Hospital.
"The paediatrician said: 'Look we suspect you were born without a uterus'.
"She explained it's the organ that carries a baby. I've always been really maternal, even from a young age," Laura said.
After her diagnosis, Laura was offered counselling but she chose not to go ahead with it.
"I've never spoken to anyone with my condition, I never knew of anyone with my condition," she said.
"I just want to raise awareness because I never had that. Even if I help to give one young girl hope for the future, then I've done what I needed to do."