My plants been vegging for a good 13 weeks due to ...

Hey there erinr8, yeah totally fine to keep veging it in fact many folks would plant in March April and flowering would only beging end of August giving many plants several months of vegs... Some plants in nature even veg for years growing up to 4m tall. Point is : the only schedule you should follow is your own schedule. Don't compromise on your yield or your quality ! She's ready to flower, but you're the god here, so you get to decide ! Hope this helps ! 🚀