You can reach inside quickly and turn the eggs 1/3 of turn. They will wiggle to re-adjust themselves for the next few minutes afterward. If you see no movement, still don't worry. They simply stop moving sometimes and still hatch. But if they don't hatch, you were probably opening the door too much. The humidity drops from 65 to 30 as fast as you can close the door. That low humidity happening so quickly causes the membrane inside the shell to shrink tighter around the chick. That would also stop him from wiggling. Give it until day 24 before you start worrying and try to keep yourself from opening the door. We, ALL were doing that when we first started. The excitement can be a killer!