I have 41hatching eggs I bought from out of state that were due to hatch today. There is plenty of humidity and the incubator has been on 99.5 for the past three weeks. I am very nervous, as I have a LOT invested in these babies. I thought chicks were pretty well on time. I have only hatched 4 guineas and 6 baby chicks before, and they all (but one) were born on their due date. The last time I bought two dozen black copper maran eggs, I had 100% failure in the cheapo incubator we had, so we invested in this big professional Sportsman incubator, and it worked like a charm on the mixed breed eggs we got to try it out with. Am I being prematurely upset, or do I have good reason to be frustrated and nervous?