the day chart I had when I started incubation got ruined. So I no longer know exactly what day I'm on so I am not sure when to go on lockdown with my eggs. what can I do about this? if I do it a day early or late will it hurt them? I am very concerned about this! thank you for the help
It doesn't matter if you are a day early or late, as long as you bump the humidity when the first egg pips they'll be fine. I've been caught out before by early and late hatchers that ended up either getting locked down when they were already busy hatching or spending 5-7 days in lockdown conditions with high humidity and they all hatched out fine. Here's a thread with some great candling pics that use as reference to give you an idea how far along they are: