Do you count 21 days, the DAY you put your eggs into the incubator? Just wondering because so far my eggs, all gathered fresh the day they were laid, and a day later they all were put into the incubator at the same time, and all of them hatched at different days, the last one being a week from its due date. Im confused, good thing i decided to wait and see what happens, otherwise I would have been short a chick..LOL