Welcome to the forum,
@Betty E .
The conventional wisdom these days seems to be reserve the first few nights if leaving from either St. Jean or Roncesvilles, then reassess after that, based on crowds (or lack of them), how late or early you want to stop, whether there are people you'd like to continue walking with and what plans they may have, and so forth. After the first few nights you should be getting a good idea what works for you.
So, long answer short -- you should be good to go! After Pamplona everyone seems to disperse along the trail as people hit their stride. Buen Camino!