So my hen, Edna, is sitting on a clutch of nineteen eggs (I didn't realize she was on so many until she was off eating for about three minutes today). While she was being grumpy, I went and checked on the eggs. No one has any pips in them yet and now I'm starting to worry. Could they all have been dead? Several were alive a few days ago when I candled. When does pipping occur? Could the fact that she has so many eggs mean the their development has been delayed and I could be looking at a later hatch?