Last night was the 17th day of incubation. Suddenly I heard a chick chirping inside the egg ! That was at 10:00 last night. It's now almost 8:00 the next day and I think the chick is in trouble. I hear occasional peeping but not like the frequent chirping I heard last night. I haven't seen not one egg move. I candled to see if I could help it out and I don't see any of the 5 eggs that have a chick's head inside of the air sac. I'm leaving to church soon and have no clue what to do. Is this noise even coming from my incubator? And when would it be appropriate to candle the eggs again to see if any progress has been made?