Pot Size Help

hello, i have a plant that ive been vegging for about 2 1/2 weeks for 24hrs under a 400watthps in a 2 1/2 maybe 3 gallon pot.
its getting pretty big, and ive been low stress training it and theres gonna be maybe 7 or 9 hearty bud sites.
what im wondering is if i should transplant now before i flower or is 3 gallons enough to take me to harvest?

heres the pic, just did some ties. barneys vanilla kush btw.

thats plenty big enough

1 gallon per foot of plant is the old rule. So you have enough but some would go to a 5 gallon for a good size plant. I would leave it. 1 ounce harvest per gallon of soil is another old rule of thumb.

you could leave her and be ok, but it would be better to transplant, stop training now and let those stems harden up if your going to start flowering.

youre good man, usually people flower with 3 gallon pots or 5,im using 3 gallon pots and im doing good

am flowering in 5 gallon and 2 weeks in there still not fully rooted in there in fact i have to wait 3 days to water, but it could be my soil mix, but i think 3 gall might work out

thanks you guys, i guesse ill just let it go with this pot. im using coco, i dont know if this counts.