Ok so I've had my Black Indian runner duck eggs in the incubator for 27 days now becuase today is day 27 but yesterday I saw a pip in two of them and yesterday was only day 26. I'm concerned because they are early and they haven't haven't hatched yet not even today, no rapid movement or zipping, just a little bit more of the pipping since last night. The two I'm talking about are through the air sac becuase I can see their beak right to the shell and touching it when I candle the egg I DONT PICK THE EGG UP OR MOVE IT OR ANYTHING, but what should I do it will be 24 hours since they pipped in 4 hours? I know that duck eggs hatch on day 28 that's why I'm very worried I don't want to help them out unless it's an absolute emergency!! PLEASE HELP??