perfect pitch in the beginning

for people with perfect pitch while u were still memorizing the notes was there ever a time where you were a bit slow before confidently answering what a note was

Also if i’m right in assuming i have good pitch memory: something I do is i hear a note i can’t yet name like A. What I do is i go up a semitone to get to Bb and assume it’s a since i’m positive i know what a Bb is. Is this a method of relative pitch? I also want to improve that as well