I am waiting for some shipped eggs to hatch. I let the eggs rest 24 hours before setting & set one of own eggs with them. Yesterday one of the shipped eggs pipped & is not out; this morning my own egg pipped & at lunch was already out. No other shipped eggs have pipped. I set the shipped eggs at 1130 pm & my egg the next afternoon. I am already down to about 40% of the shipped eggs I set; could possibly they have taken longer to START developing? I know shipped eggs are always a risk, but I'm just hoping for the best . Day 21 was yesterday.