Hi my question is how do i know if the 2 eggs left have broken into the air cell i am new to this i had tree eggs one hatched but during the night it passed away it looked like its insides were on its outsides. the eggs are on day 23 and at midnight it will be day 24. i candled them and i see the chick but can not tell if it is moving or not also i see very faint veins and at the big end of the egg i see the air cell with that area vill up with a baby chick when it gets ready to pip or will that be ther untill the chick first cracks the egg. I have a simple ufo looking incubator but went out and bought a hova bator and have 23 eggs in it. How long should i give the 2 eggs before giving up on them