Hello! We have 9 eggs under our speckled sussex hen and she is doing a great job tending to her nest. This is our first time allowing a hen to hatch eggs. It has been 10 days since we put the eggs under her. I tried to candle the eggs last night, but most are black copper marans and 10th generation olive egger eggs. The marans eggs are very difficult to see through and the olive eggers block all light. We have 2 barnevelder eggs and I was able to see definitely development in 1. My question is -- is it OK to leave all the eggs under her? I don't want to remove any because I can't tell if there is development…but will undeveloped eggs rot? I have read about rotten eggs exploding underneath broody hens. Just looking for some input, advice, experience. Thanks!!