An infant who was born weighing 14.5 lbs, or 6.6 kilograms, one month before his due date is going home for the first time today, after spending more than a month at North York General Hospital.

The baby's mother, Delieta Daneil, says her son has "progressed a lot" since he was born on Dec. 7, 2013, and she hopes that he'll be completely healthy in three or four months.

"At the beginning he had problems with his blood sugar…. And then he had problems with his oxygen level," Daneil told CTV Toronto on Saturday, explaining that her "chubby" son has gained more weight since his birth. He now tips the scales at 18 lbs (8.2 kilograms) and wears the same size clothes as a nine-month old infant.

"I was surprised" said Daneil, commenting on the fact that she wasn't expecting such a heavy newborn. "The estimation in the ultrasound was not what it was… He came out more than half a kilo more."

The average birth weight in Canada ranges between 5.5 to 9.92 lbs (2.5 to 4.5 kilograms), according to Statistics Canada.

Daneil says her two other sons, who were born weighing nine and 12 lbs (four and 5.4 kilograms), are excited to play with their new brother.

"It will be music, TV, dancing, playing time with his brother."