I would be skeptical of this...but maybe that recruit misunderstood something along the way. Sundays are not counted as training days, so that counts for a few of the days he/she may not understand. Some divisions do have their Battle Stations up to 5 to even 6 days ahead of PIR, and as far as family going out earlier to see them...NO, NO ONE will be seeing their recruit until AFTER PIR...
This is the most current PIR dates:
http://www.bootcamp.navy.mil/upcoming_grads.asp