I have hatched ONE egg in my incubator previously... so, I'm not a first timer at all.... But the first egg had a chicken sitting on it for 10 days until she decided she didnt want to do it anymore, so I incubated... This time around though, I got the eggs (not knowing whether or not they were even fertile) on the day of hatching from my only laying hen, Cosette. So, they've been in the bator since day #1. I've been candling them every 2nd day or so to see what I can see. Eggs were laid on February 11th, 12th, 13th and 14th respectively.... The two eggs from the 11th and 12th I just today have seen signs of life, veins and a little black dotty eyeball. The other two, nothing yet. Now I know your basic chicken hatching time period is 21 days. Is that 21 days from the day they were laid.... 21 days from when they started being bated, or 21 days from now, when I can see veins and baby eyeball. How often do I rotate the eggs, whats a good amount of times per day? All that stuff.... since this time around, we're going from scratch.