Congrats on the cycle. 2 more weeks should be fine but psychologically I think it's better to accept the gains you made and work toward keeping them instead of extending the "free ride." I've seen this a lot. The next cycle will probably be 14 weeks, then 20, then 40 and within a couple of years, PC T will mean nothing because your HPT A is so shot you can't recover and might as well stay on.
It's always best to err on the side of caution. I know I'm more concervative than most in this regard but in the end, you can't go wrong.
As far as keeping the gains PC, check out some of the supps below. They're not the stuff you can get at GNC! They're designed for enhanced atletes. UNLEASHED, VIGOR, BIG BLAST and POST-CYCLE can all help you recover and keep gains and DEFINITION can help you drop that bloat quickly.
www.proteinfactory.com Then you'll know what you've really retained, solidify it with training and nutrition and do another cycle in 3 months. That's my advice.