My first time incubating. On day 18 I had 8 that I could see movement in and 4 that were dark but not moving. Today is day 21 and so far nothing. I am going crazy. Is it possible or likely that they died since Wed? Temp is at 99.5 to 100 and humidity is around 70%. I am a little worried because the humidity has fluctuated more in the last 3 days then it did during the first 18 days. When will they pip? Should I see the eggs vibrating as the chicks are getting positioned to come out? Should I be able to hear them peeping inside of the eggs?