When I hear chirping from inside the egg, approx how long before pipping begins? I heard it last night randomly for a few hours, but this morning I didn't hear anything.. I have had temp issues with this incubator that I didn't actually discover until Day 14.. The digital reading was actually about 7 degrees cooler than what it should be.. I wished now I would have used a back up thermometer on Day 1.. The advice I received from others was to continue with the hatch after regulating temp and hope for the best by extending the hatch period a few days.. I was just curious what some of you more experienced poultry experts had experienced in the past...Thanks for you comments in advance..