I desperately need some advice. I incubated 6 Coturnix quail eggs. 5 hatched but the last one is alive but not hatching. It is day 22, and i Made a breathing hole. He is not yawning but he is breathing and was peeping when I whistled, but know he won’t peep. Is there a change that he will hatch or will he give up or die. Will he have a chance if I open him up more or should I just leave him. My temperature was low for the first week but accurate the rest of the time. My humidity is 66%. Any advice would be very appreciated.