Congrats Suziwin on your accomplishment!!
I am in a similar situation - I take NC6 on March 30th and then have NC7 left.
I heard that the waiting list is long for the CPNE, but I have been told to inquire about a "standby" list. Some stud buds have been able to get in earlier because they were on that list. Check out a website called alittlesarcasm.com - it has a bunch of testimonials from students that have taken the CPNE at various sites. They basically describe their experiences and opinions. Perhaps it would give you some insight.
Good luck to you!!