Katt, IMO, I'd leave it alone and not start over. Perhaps verify the AM with another kit and continue with the PWC. In terms of pH, I wouldn't worry too much about that right now. I'm no chemist, but there may be other variables as to why pH does or does not change. Depends on perhaps how much water, any plants/wood, tank is still fluctuating in cycle?
hang in there...
hang in there...