Weighing just two lbs at his birth, Callum has tripled in weight since his arrival last year!
Now weighing a healthy 7 lbs, Callum has finally reached the weight of a typical newborn and his parents are understandably delighted with his progress.
Proud dad Chris has no doubt that his son will continue to thrive, saying: "He is only three months old but he's getting there. He's a Hoy, so he won't struggle putting on weight."
The dad-of-one has updated fans and followers on Callum's progress since his arrival and continues to praise his little boy for his bravery.
The six-time gold medallist has retired from professional cycling, but praises athletes who can combine parenthood with professional sports saying: "The very nature of a professional athlete is that you have to put yourself first. When you have a baby, you put them first. So I have no idea how they do it."
We're so happy to hear that Callum is doing so well!
