Help with hatch

[gamaaysa]

My pea-hen eggs were due to hatch on the 22nd,nothing,i checked tonight and still nothing, i set 9 eggs 4 were just yolk and 5 were fertile with dead embryos,just guessing almost fully developed,any suggestions, i put them in the hatcher Thursday before Saturday just like my chicken eggs, raised the humidity up with sponges, but i believe they were dead before transfer,no pipping or cracked shells.
What do you think???

 

[debilorrah]

How many days are they supposed to take? I know ducks take longer than chickens at 28 days.... I personally would wait until there is no possible way, but I am a cup half full kind of a gal.