Our hen hatched laid 16 eggs. The first one hatched 6 days ago, and the last hatch was 2 days ago. She is still sitting on the remaining 7 eggs. Is there a possibility that any more will hatch or are they duds? I don't want to risk going in there and messing with the eggs if they could still hatch, but I don't want her to be sitting on rotten eggs that could bust. What do I do?!?!?