Thank you! I decided to lay the 'upside down' egg on its side with the air bubble up and the large end of the egg slightly tilted down. It is still in the eggs turner with a tin foil ring to try to keep it from rolling away.
I hope your incubator eggs are doing well, too!! When are you going to be checking them next?
I definitely do not qualify as an experienced person on the matter, but I do hope to someday have a broody hen or two. Mother nature knows best, after all!
My plan was to make the hen a separate nesting box in a wire crate to keep her in and the other hens out. She could have a her own food and water and enough room to stretch her legs if she wanted to. I personally think I would put the whole broody "cage" in the coop with the rest of the flock, so the broody hen does not feel completely isolated from her flock. If she seems like she might want more privacy than this, you could put her in a corner with a partial fabric curtain on one of the side of the cage. You would have to go into the coop to let her out of the cage for bathroom breaks, but it would only be for 21 days and well worth it for the cute fluffy butts running around! This would potentially also help integrate the new chicks into the flock more easily, as the rest of the chickens could see and hear them but not reach them unless you were there supervising when letting them out of the cage.
Maybe you could try something like this and put some more eggs under her while she is still broody? Good luck!! I can't wait to hear how things go!