Born 17-weeks premature and not much bigger than his dad's hand, Jeff and Kelley Westcott were told to expect the worse.

Today, the miracle baby boy is at home in Peak Hill enjoying his first Christmas.

"We are just so glad to all be here together in our home at Christmas time," Mr Westcott said.

It has been a long haul for the farming family, who were separated for most of the five months Samuel spent fighting for his life in Nepean Hospital.

"Bringing him home was the best Christmas present ever," Mrs Westcott said.

Samuel's big sister, four-year-old Anna, could barely contain her excitement when the Daily Liberal visited the family on their property just outside of Peak Hill.

"It's been two steps forward and three steps back since the day he was born," Mrs Westcott said.

Samuel was given little chance of survival after he was born in the breech position at 23-weeks.

Identified as a high-risk pregnancy, Mrs Westcott was immediately airlifted out of Parkes on August 22 after going into premature labour.

"We were told that if he came naturally he would most likely not be alive," Mrs Westcott said.

"We chose to have a caesarean to give him a chance at life but he chose to make his own way."

Little Samuel has defied the odds from the moment he entered the world.

"We couldn't believe it when he came out crying," Mr Westcott said.

"The hospital gave us a book of statistics and research outlining all the things that could go wrong but we threw it in the bin," Mrs Westcott said.

Dependent on a ventilator for the first 10 weeks of his life, Samuel weighed just over 500 grams and was 31cm long.

The little fighter was forced to fend off a serious blood and lung infection and Nectrotising Enterocolitis (NEC), a deadly condition where the gasses from digestion break through into the lining of the bowel.

Samuel's mum couldn't even bring herself to register her son's birth until he was six-weeks-old.

"I was not sure whether he would live and I did not want to do anything that would jeopardise or jinx it," Mrs Westcott said.

"I let my guard down after ten-weeks and I thought we were getting closer to the door and then he became sick."

The battle is not over for the Westcott family, who will need to closely monitor Samuel's growth and development for years to come.

He still suffers from chronic lung disease, needs to be fed by tube every three hours and will require frequent eye check-ups.

But for now, the family is just happy to bring their baby boy home in time for Christmas.