So I saw no signs of life from an unhatched egg (day 23), so I assumed it was dead. I cracked the egg open at the air sack end (just in case it wasn't dead) and it is alive and breathing in there! I've only broken the shell, membrane is still intact, but there is a small spot of blood on the membrane from where I touched it with the tweezers. I know that it's not ready to hatch, so will it be ok left in the incubator despite the fact that I've removed the shell from the air sack end? How do I go about not killing this chick?