Well mabey the eggs arent fertile... because we started incubating in september and we got 15 ducklings all of the eggs after the laid date of 10/20 were not fertile. (this is our first year too) we had 40 eggs sposed to hatch I candled them all only to find that they all werent fertile. so were putting up the incubator for the year. we learned from my uncle that ducks are like chickens and have to have 16 hours of sunlights or they will not fertilize.