I got some eggs from Ebay and when I set the eggs, one egg I could swear was already incubating on its own. It's now day 11 and this one egg has already filled the shell. I was planning for lockdown on day 19 because of the maran eggs but I think this one egg will have pipped already by then. I dont want to dry the poor chick out. I have a hovabator with fan and auto turner. I live in the desert so my dry hatch is 35% since it is so dry outside. All the other eggs are at about the same development but this one egg is more advanced I would guess by at least 2 days. What to do?