In a family emergency, there’s no substitute for this English grandmother’s instinct.

That’s how Joanne Dolan, 53, saved her newborn granddaughter’s life when the premature baby was born unexpectedly at just shy of 25 weeks — and only six weeks after expectant mom, Katie Dolan, discovered her pregnancy.

One-and-a-half-pound Niamh was born on Nov. 24, 2021, South West News Wire reported.

Now at just under 4 pounds, the “medical miracle baby,” according to her doctors, is still struggling to survive. The infant remains under care of neonatal doctors and nurses until the baby is strong enough to go home with the Dolans.

“I didn’t have any time to think, I was terrified but just acted as quickly as I could,” said the heroic grandmother.

When Katie suddenly went into labor at their home in Heckmondwike, West Yorkshire, Joanne’s only option was to call first responders for guidance.

“I was anxious and unsure if I had done it properly, but was on the phone to 999 and they explained how to do the CPR,” she told SWNS. “The whole thing was so scary.”

Katie, a recruitment consultant, was 19 weeks along before she realized she was expecting — and had little time to celebrate before trouble occurred in week 22.

“The bleeding kept starting and stopping, and I was being transferred around lots of different hospitals — it was quite scary and I had no idea what was going on,” she said.

After one such hospital stint in late November, Katie went home with mom, Joanne. But it wasn’t long before her health took a sharp turn for the worst.

That night she awoke around midnight with abdominal discomfort, and soon felt “really strong contractions.” She said, “I remember shouting and calling for my mum.”

Joanne’s first move was to call for an ambulance, but Katie needed immediate help.

“They stayed on the phone with us,” said Katie, whose labor was over “within 15 minutes.”

They learned that Niamh was breech, when a baby is born feet or buttocks first, and puts both baby and mom at higher risk of complications.

“I honestly don’t even remember much, I was in so much shock.” What she does remember is her mom, Joanne, bravely springing into action. Twice she resuscitated the baby, performing CPR and mouth-to-mouth rescue breathing.

Their ordeal didn’t end at the hospital, either. They waited five hours to get news on Niamh, not knowing if she had survived her harrowing birth.

At 24 weeks, the preemie had just crossed the point of fetal viability, the time period during gestation in which an infant is known to feasibly survive outside the womb. Born even a few days earlier and Niamh would have been about half as likely to survive.

“It was absolutely terrifying,” said Katie. Niamh, meanwhile, was transferred to a specialist about 40 miles away in Sheffield, England. “I wasn’t even allowed to go to Sheffield with her because you can’t travel 24 hours after giving birth — I was in so much pain and shock,” she said, as doctors told them they “did not know if she was going to make the journey.”

“It’s crazy — the medical staff called her a ‘medical miracle baby’ as they had never seen a baby born this early at home and survived,” she added.

For several weeks, the new mom yearned to hold her baby, who was hooked up to a ventilator and feeding tube until recently. Now, she’s about two-and-a-half months old, and steady on high-flow oxygen therapy. The family recently visited Niamh in the hospital where they snapped a few photos of the three generations of women.

In an update, Katie said her little miracle “needs to put more weight on before she can come home to us.”