I have an Australorp setting on 12 eggs. Yesterday when she was off the nest I candled her eggs. She had cracked one. Looks like she stepped on it. It had an indent and small crack running off. The embryo was still moving in side so I melted candle wax on the crack and put it back in the nest. Tonight I candled and its still moving. They are not due to hatch til Sept 12th. There was no leakage from the egg. What are the chances it will hatch? I had to try.