Can someone help? This is my first post and this is the first time I've tried to incubate anything. I have six cayuga duck eggs in a brinsea eco incubator. Four of them started hatching yesterday morning but they appear to have stopped. One of them is definitely alive. I can hear it peeping and the egg keeps shuddering. The other three after an initial crack in the side of the shell have stopped trying to get out. I filled both pots full of water as per instructions and I haven't taken the lid off since day 25. Not sure what to do now. Help! The egg which seems to be the only survivor is breaking out of the top of the egg. The other three were coming out at the side. Not sure if this makes a difference?