I candled my chicken eggs tonight and noticed out of the 4 eggs, 3 of them have the Dip Down air cell. these eggs aren't due to hatch for another week and yet I'm seeing the air cell has already enlarged, should i be worried?? Chicks are still moving... should I quit turning them. i have never had chick eggs do this a week before it's time... Temp is staying at a nice 100.2 and humidity is at 50 to 55%