This is my 3rd hatch and my first time hatching full sized chickens. I have 4 black australorp and 8 lavendar orphs. One of the BO's was zipped 1/2 way around 2am when I checked b/c I heard tons of peeping. It's now 6:20 and it has made no progress. Is this ok? I've never had one take this long once zipping started. It's still peeping and breathing just fine and the peeps are still loud and clear but it doesn't seem to be working it's way out anymore. I also had one LO pip around 2am this morning and there is a small amount of yellow liquid coming from the pip. What is that? I don't hear any peeping from that egg and haven't seen any progress or movement. Thanks!!