A miracle baby weighed less than 1.5lbs when he was born prematurely at 23 weeks.
Hannah Collett and husband Andrew feared the worst when Raffy was delivered early, although doctors gave him a good chance of survival.
However, the 'tiny' tot was struck down with sepsis shortly after his birth, CoventryLive reports.
But Raffy fought off the infection and he is now due to leave hospital in the next week, with his family and friends desperate to meet him.
First-time mum Hannah said her pregnancy was "low maintenance" up until the 22nd week.
“I found out I was pregnant last September and I had a very smooth low maintenance pregnancy," she told CoventryLive.
"Then, just after Christmas I just felt a bit different downstairs so I went to Warwick Hospital on December 30 to get checked out and they told me my waters had broken and the baby was just less than 22 weeks at that point.
"Doctors said there was not much they could do for the baby if he was to be delivered there and then, they told me the reason my waters had broken was that.
"I had got an infection myself so they admitted me to Warwick Hospital and treated me for my infection.
"Then, over the coming days, we were scanned every day to see if the baby was still okay and what they could do for the baby."
Soon after, Hannah was moved to University Hospital Coventry for specialist care, where Raffy was born at 23 weeks.
Miraculously, little Raffy was born breathing for himself and crying and doctors gave him a "good chance of survival".
The newborn weighed just 640g at birth (just over 1.4lbs), which mum Hannah said was "amazing" as babies of that gestation usually weigh around 500g.
Despite this, Hannah and Andrew were told to prepare for the worst, as Raffy was whisked off to the intensive care unit, still fighting against the odds.
Hannah said Raffy did "remarkably well" in his first couple of weeks, but tragedy struck when the little one was diagnosed with sepsis.
Thankfully, the infection cleared and Raffy's health continued to improve.
"All of his scans, his heart, brain and lungs, major X-rays and scans came back as normal," said Hannah.
Raffy now weighs 6lbs and will be leaving hospital in the next week, as his family and friends wait desperately to meet him.
The relieved mum said: "He is doing absolutely amazingly. He was so tiny to begin with.
"Now it feels like he has got his baby fat and rolls coming and chubby cheeks, so it is lovely to see and he is feeding really well. We had the best possible outcome we could hope for."
Speaking about how she and dad Andrew coped throughout their ordeal, Hannah said: "We adapted really quickly because we have not had the stress of balancing other children as I see other mums on the ward who have other children and they are having to balance their home life and their newborn as well, whereas we just gave it our all from the day that Raffy was born.
"We have been by his side the whole time, I am there every day with him."
Due to Covid restrictions, Raffy has yet to meet his family members.
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Hannah said: "The hardest thing has been not being able to have our family in there with us because they have not got to meet him yet, so it is hard with it just being the two of us day in day out.
"You do need that extra support, but they have been there in other ways. They are just desperate to meet him now."
Hannah also praised the "fantastic" work of the NHS staff at both Warwick Hospital and University Hospital Coventry and Warwickshire.
She said: "The level of care that we have given throughout has been amazing and whether it be the nurses, consultants or doctors, everyone has been really informative and they have kept us involved every step of the way.
"Andrew and I needed the information to be able to process it and make the best decisions for Raffy and they gave us that every step of the way.
"They have taught us everything from how to nappy change when he was hooked up to the ventilator.
"They taught us how to tube feed and more recently breastfeed, so they have offered us more support that we could have ever imagined really."
Now looking forward to raising their son at home, Hannah hopes that telling her story will encourage other premature parents to have a "positive mindset" throughout and not give up hope.
“It is the hope and positivity you have to cling on to," she said.
"That is what got Andrew and I through - have a positive mindset throughout and have hope that they do get better and they are in the best possible place.
"It is only now we have felt it is time for Raffy to come home because for the first few months he was in the best possible place with the best possible level of care.
"As hard as it is to be away from them at night when you have to get your sleep, you know they are being really well looked after by the staff and the expertise they have."
