nothing is wrong
everything is ryt
its a tiring process
so they may take their own time to hatch
just keep your finger crossed
can you post your candling pics
you may have less chances to get those hatched
even i got a problem
my hen was brooding 15 eggs
i incubated on day 7
all 14 eggs were developing but the one egg was broked and it contaminated all the egg
i was worried
i cleaned it with hot water
luckily i got 10 cute chicks