Ann-Marie lets out a heartbreaking scream after discovering the devastating news that one of her babies has died.
During her 28 week scan, the expectant mother is told that the smaller baby has passed away in the womb.
But her suffering does not end there as they must now fight to save her sister, who is the only surviving baby from a set of triplets.
Anne-Marie had already lost the first triplet at week 9, then complications arose with one of the remaining babies due to the blood supply from the placenta.
When asked if she grieved the loss of the first triplet, Anne-Marie says: "Yes, it is definitely emotional. Because you’ll have to explain it to them at one point.
"Because they are all identical she was going to live exactly the same life as you."
Then they discovered one of the surviving babies had selective growth restriction and was only half the size of her sister.
The risk is she won’t get the nutrients she needs and if little baby stops growing and she potentially passes away because of that she will impact her sister.
In Channel 4 documentary Baby Surgeons: Delivering Miracles, doctors have allowed cameras unprecedented access to follow their every move in the specialist Fetal Medicine unit at St George’s Hospital in London.
Professor Thilaganathan - the hospital's Clinical Director for Fetal Medicine - explains the smaller baby has put on a surprising amount of weight during the 26 week scan.
He explains that as long as the placenta is doing job of providing oxygen then they can leave them, but they can't wait so long that it fails and does harm.
Ann-Marie's partner admits it's like a "slow motion car crash" as they wait to get the balance right.
Professor Thilaganathan says: "Our aim is to keep the twins in as long as possible so they can mature in the womb but as the smaller one grows it will demand more in the placenta. It’s only going to get worse."
Then comes every parent's worst nightmare as Ann-Marie breaks down in tears when told it's not good news during her 28 week scan.
Professor Thilaganathan explains there is nothing anyone could have done and it was too late once pains and symptoms started to show.
Explaining that one third of the time the second baby does not survive, he tells the parents: "I don't wish to be harsh, but I have to focus my concerns on her sister."
There has been an abruption and the placenta has a bleed on it, which means the sister can pump blood away but there is no heart to pump it back in.
The baby has anemia and requires a blood transfusion before birth, which involves a thin needle going through the tummy to top up her blood levels to normal.
Ann-Marie decides to name the baby who passed away Emily-Marie and her sister Poppy Emily-Marie, so she "will always have her sister with her".
When it's time to give birth at 30 weeks, Anne-Marie delivers Emily-Marie first with one push and then holds on to her baby.
After spending some time alone with her baby she gives birth to healthy baby Poppy.
Three months later, the happy parents take baby Poppy for walk to a spot where Ann-Marie came while she was pregnant.
"The last time I was here they were both alive so it's quite hard actually," she confesses.
Another incredible story is that of baby Annie, who has surgery to remove a tumour while she's still in the womb at 17 weeks.
The baby has a lung tumour which has a specific feeding vessel sucking most of blood away and limiting how effectively her heart operates.
Tiny Annie, who is no bigger than a Mars Bar, will die unless the tumour in her left lung is treated as she will go into heart failure.
"When we found out she might not survive it changed everything," says nervous mum Becky, who watches on an ultrasound monitor as the surgeons begin.
Becky says they were expecting their baby to die so the fact that surgery is even an option has given them a tiny bit of hope.
Doctors will use a laser will to zap the matchstick-sized blood vessel feeding the Malteser-sized tumour but it will travel just millimetres from Annie's heart and could possibility kill her.
"There is a potential that the heartbeat will stop. It’s in the lap of the gods," admits Prof Thilaganathan.
First he feeds a microscopic needle through Becky's womb then into Annie to anaesthetise the baby.
Once she's asleep he uses one hand to hold a transducer over Becky's tummy to display the baby's exact position on the ultrasound while guiding a needle into Annie's lung.
He passes a laser fibre through the needle and fires a short, sharp energy burst to sear the blood vessel, cutting off its supply so the tumour will eventually die, allowing Annie's lungs to develop normally.
The surgery only lasts 10 minutes and is a success, but parents Becky and Richard still face a nail-biting wait to see how the baby develops.
Thankfully, a healthy Annie is born months later and dad Richard admits: "It was really worrying, they just kept talking about her lungs but when she was born she came out just started breathed."
Becky, who also has a five-year-old son Harvey, adds: "She’s completed our family."
Having suffered three heartbreaking miscarriages, Randika fears for her baby's life before she is born.
The expectant mother was told she would never be able to have kids because of her condition, a form of dwarfism called achondroplasia.
It's too dangerous for Randika to give birth naturally as he pelvis isn't suitable and the labour process would be very damaging to her body.
At the 27-week scan, Randika discovers that her baby is healthy and has the same condition as her, which leaves her feeling happy but also worried she will face the same challenges in life.
Writing to her unborn child, she says: "Dear darling baby. Having had three miscarriages I still wonder whether my body will let me keep you inside. You’re not even fully grown and I’m really struggling to carry your weight."
Randika's pelvic hip bones are shaped differently and babies with achondroplasia have a slightly larger head, which puts more strain on her body.
This means they are forced to perform a C-section, but it doesn't go exactly to plan as they initially struggle to pull the baby's head out.
Luckily all it needs in another small incision and her healthy baby is welcomed into the world.
*Baby Surgeons: Delivering Miracles airs tonight on Channel 4 at 9pm
