I set my eggs three weeks ago tomorrow (Saturday) at 10am, so depending on who I ask. It's either day 20 or 21. But, I have not seen or heard anything from them. So when I noticed my humidity had gotten a bit high, I took advantage and pulled one out to candle...and I could no longer see the air cell! What in the world does that mean??? This is my first time incubating, and so far it has not been much fun. If none of these chicks make it, I don't think I'll try again. The stress is horrible!