Hello! I have 4 hens sitting right now I've never had that many at one time. I have a couple questions. 1. They seem to be getting confused which box is theirs other than the one that is about to hatch. One of the others sat on her eggs and she threw a fit so I moved the one in there back to her box. Will they figure out which box is theirs or do I have to keep an eye on them? They are all separated from the flock they're in the garage. My concern here is that I'm out of town this coming weekend. 2. The one that is about to hatch has an egg that doesn't have much of its shell left. It's just the inner membrane. There was a little blood. There's still a heartbeat. Never seen one hatch like that is it ok or should I get rid of it? Thanks!