Luke and Olivia Weaver's twins, Evelyn Quinn and Lillian Harper, arrived prematurely on November 8 even though they weren't due until January 20. 

They were delivered at St John of God Hospital in Ballarat but were transferred immediately to Monash Medical Centre in Melbourne for specialist care.

The twins stayed there for about two weeks before being transferred back to Ballarat. 

"We thought we'd be spending Christmas in hospital. We'd even booked a restaurant for lunch so we could duck out to it for a bit," Mr Weaver said. 

Ms Weaver stayed at the hospital at the weekend in readiness to bring her babies home.

"We got to bring them home the day before Christmas Eve," Mr Weaver said.

It was the first day since the birth that the couple didn't have to get up early to travel to Ballarat or Melbourne from their Bacchus Marsh home to see their babies. 

"We couldn't ask for anything more than to have them home for Christmas," Mr Weaver said on Tuesday. 

"This is the happiest moment of our lives – having our daughters home, and the fact that they will be here with us on Christmas Day."

Ms Weaver said it was a little nerve-wracking to spend her first night alone with them without help from hospital staff. 

"I'm learning though to have them together, that I can cuddle them together and feed them together," she said.

"It really is our Christmas miracle. It happens when you least expect it." 

Ms Weaver's parents and brother flew in from Sydney on Christmas Eve to meet the twins for the first time. 

"This is all our Christmas wishes in one," she said. 

"Everything that's happened shows how lucky and blessed we are.

"There are people out there who can't make it home for Christmas and will be in hospital.

"For us it's been a long journey, but this was a light at the end of our tunnel."