What type of incubator did you use? did you use shipped eggs? Local eggs hatch better, its best to learn how to hatch on them, MUCH less discouraging. We have some amazing hatching experts on this thread, we can help!
I think I have a hovabator I'm not positive but im pretty sure it is. They were from a friend of mine. Some of the eggs had mostly developed chicks in them but they just didnt make it out.