I have 2 eggs on day 25. I made a hole in the air cell to find out what was happening as I thought they had died. Anyway, they are moving against the membrane separating them from the air cell with no sign of pipping. I am keeping it damp as it looks thick and quite white but lots of blood vessels. I don't know how long they can carry on like this without help! I'm out all day tomorrow so I won't be able to keep dampening down and don't want them to shrink wrap! This is the closest I have got to a successful hatch despite several attempts. Can't get hum above 60% despite wrapping in wet paper towels and almost filling floor with them. Should I try and help by now?