I put my eggs in on April 28th at 8 am. So is the 28th, day 1 or day 0? I saw someone mention day 0 today and that messed me all up. I thought I was on day 13 today, am I only on day 12? Trying to figure out if the turner comes out on Thursday night, or Friday? Also, can someone please explain just what pipping is. That has me confused too.