So I am hatching three pekin duck eggs. Today is day 30 I am starting to get worried. On day 28, at about 7pm-11pm all three ducks pipped and made a little hole. Day 29 went by and two of them made their holes little bit bigger. I though for sure they were going to hatch last night on the night of day 29. Today is day 30 and still no zipping or bigger holes or anything. My humidity stays at about 71% and temp is at 98.8F. I can see them moving and one actually peeps at me every time I go and talk. I don't know if it usually takes this long but last time I checked it takes 48 hours. It's been 36 hours and still no sign of progress on any of them. This is my first time hatching and it would really help if someone could help.