I snuck some eggs under my broody chicken 22 days ago. I checked on her yesterday, she was sitting on them. Checked on her today, she was off of them up in the rafters(cooling her tail, maybe). Eggs are very poopy, some broken and kicked out. Broke one open seems to be almost fully formed chick inside with bright yellow yolk but dead. Put the rest of the eggs under a heat lamp. Any hope??? What might have happened??