Don't despair, things happen. When I first started incubating I used barnyard eggs. The chicks I gave away. My first hatches were around 60% gradually I tried different things and have had 100% hatches with my smaller hatches. Now it's generally between 80 and 90%. You just have to keep trying. It was several hatches before I got some good hatch rates. I dry incubate and really kick up the humidity to around 75% during the last 3 days. I now incubate in a cabinet incubator but hatch in my styrofoam incubators (hatchers). Good luck and have fun...