This is my second attempt to hatch Cayuga eggs, all of my eggs last time had detached air cells and none of them made it so I'm trying again. Now I've got a single Cayuga egg on day 30 with *I think* internal pip. It was wobbling a ton last night and I think I may have heard it, but I don't see an external pip. My humidity has been around 75% and my temperature is unreliable; my incubator says it is 98.5 but by digital thermometer says it is 95. I know duck eggs tend to hatch late, but is this normal? I've never hatched anything before so I am very nervous and worrisome.