No, it's never too early to see movement in an egg.
Are you talking about movement within the egg or "shadowing"? Shadowing is the dark movements at the top of the egg by the air cell.
Not movement in the egg. The egg itself moving. I didn't see the egg move until hatching last time. I have the incubator set at 100.5 but that was to adjust for cooler temps my last 2 attempts that caused my eggs to die by day 14. I ran many tests before starting on both the thermometers and the incubator. The internal temp according to my tested thermometer is an average of 99.5 but it does go up and down by over a degree depending on what part of the incubator the auto turn has the thermometer in.
Not internal movement or shadowing. I do see them moving when candling. But the egg itself bouncing. That didn't happen until hatching days last time.
