Pubic hair that can't be removed ... ?

[worldexplode.livejournal.com]

About a week and a half ago, I shaved and everything was fine and dandy (I actually found that I preferred it).  But now, the stubble just won't budge- I do, however, get razor burn.  I've tried almost everything... different types of razors, new shaving cream, nair... nothing seems to work. Unfortunately, waxing isn't really an option for me...extremely bad experiences; let's just say I'm extremely apprehensive to try again.
Has this happenned to you/any suggestions? :\
Thanks =)