I didn't do my 21 day candle yesterday so I decided to do it just now. All eggs look good except one looks like it has already internally pipped?? I put the egg to my ear and thought I heard little taps and there's definitely movement in the aircell but mostly a shadowy outline and nothing definite like a beak or anything. I'm new to duck eggs. Temps have been good in this bator. I noticed veining in this one early. Possibly day 2? Day 3 for sure but I think it was a little earlier because I remember being shocked and thought duck eggs were just different. This egg comes from a batch of shipped eggs. Is it possible that a duck was sitting on it a few days before it got shipped? Would that kill the embryo? I'm really confused. I wasn't expecting this so my hatcher was torn down. I'm putting it back together and trying to stabilize temps and humidity. Any advice???