Hi! I set some eggs in my homemade incubator on August 3rd and I'm expecting my hatch date to be on August 23rd! I built a homemade incubator from a really nice styrofoam cooler and the temperature is holding nicely. I am however, having a lot trouble with the humidity. Last night it was too high (around 62-65%), so I made a few adjustments like removing most of the sponge. This morning, the humidity is too low (around 45%), so I added just a tiny bit more water and I'm waiting, but nervous because I have to be at work all day. I'm also noticing a bad odor when I open the incubator to turn the eggs. I've heard this can mean a rotten egg. How can I know which one is the "bad egg"? This is my first time ever incubating and I'm new to the chicken world! This is my first summer ever owning a chicken! Help me please anyone! Thanks!