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If the baby isn't moving it could have passed. Don't throw it out, I had a chick who I thought was dead and hatched. Did you put them into lockdown? The last three days of hatching they should not be turned. Simply laid on their side and left alone. "If the air cell is detached, hope is not lost! You can incubate these eggs in an incubator that holds the air cell on the topside of the egg." From what I have noticed with my eggs is that... Sometimes they don't move for a little while, they just kinda float. If you are concerned get a warm bowl of water and place it in. If it starts to wiggle you have a baby! If it doesn't you may want to prepare yourself for a lost chick. Like I said. Dont toss them until you KNOW they are gone.