Turkey hatching early please help!!!

[gjgarre]

I was just rotating my eggs that are in my incubator, my turkey egg had a crack, chip (pip?) in it. The problem is that by my math it shouldn't be hatching until the 30th, I candled the egg and I can see the chick moving inside, so I don't know what to do. Is this normal?

 

[gamebirdsonly]

Usualy there is always at least one ealier bird that is in a hurry to hatch at least all the batches of eggs I have incubated over the years so I would'nt be concerned.