I have 6 eggs in various incubators (three in a 110v mini Incubator, two in a homemade incubator and one under multiple broodyy hens) and i put them in at about 1am on jan 9th and i think they were supposed to hatch friday or saturday. i havent seen anything happening. i tried to candle them on wed and i couldnt really tell what i was looking for as i am completely new to hatching eggs and for that matter chickens in general. Should i crack them open or leave them? Any suggestions on what to do?