Hatching turkey egg questions

[starterfarm]

OK candled a few again, I didn't want to disturb the incubator too much. They are past the vein growth being visable i think. They are dark with an air bubble area. think my eggs were a few days older then the day i put them in. Think i should have asked that or maybe they told me the lay date an i just spaced it off lol. Guess i will check them again in a week so i can try to pin point when they will hatch