I had a pip about 24 hours ago. There wasn't too much progress since. However, now we hear peeping and there is a lot of movement going on. Do I need to intervene since it has been so long? Won't that harm the other two eggs in the bator (they haven't pipped yet). Tonight will be day 21. This little guy pipped early. I don't know if it is normal for a chick to take this long! I'm worried. It is a silkie, if that means anything. Thanks!! ETA: This is the egg, not sure if it is clear, but the membrane has a decent sized crack/hole in it that the chick has been working on.