Sabz68_LJ said: I am even more confused do I change the pot or not ?
I believe Daisy is correct and I would not change the pot.
The reason one normally starts in a smaller pot has nothing to do with filling the pot with roots - it has everything to do with the amount of water that a large container of compost will hold when there is very little growth happening to draw upon that moisture. This contributes to rotting of the cuttings vs. rooting. I would leave it alone but I would be cautious and water very judiciously.
Established plants love warmth and sunshine and want very good drainage and tolerate moderate drought quite well.