The first egg has pipped and zipped, and its chirping, but it started yesterday morning at 6am, and it has now been 26 hours and it still isn't out of its shell. I have 2 more eggs pipping next to that one. The humidity was between 40-50% the first 18 days and then I haven't been able to get it above 55-60% since then. Its a homemade incubator: large plastic tub, I have the light bulb screwed into the middle of the lid, 2 glass windows on either side of the light, holes that are taped closed, the lid taped closed, a loaf pan of water with a screen over it to keep it separated from the light and chicks from drowning, 2 plastic dishes with sponges in them. I tin foiled the inside of the whole thing to help with heat. I threw in a couple wet hand towels on day 19. I keep lifting the tape on the windows and refilling the water bowls and spraying water into it over the eggs to try to up the moisture. I really don't know how else to get the humidity up, and I don't know if this first egg is going to finish hatching. How long between zipping and fulling hatching, and should I be worried about the humidity problem at this point? Thanks.