Guinea eggs hatched on day 24?

[KaleDaDuck]

So iv'e heard a noise from the incubator and i saw a hole in a egg
It appeared like it was hatching... But how?
Its been just 24 days and its supposed to hatch on 28?
Is this ok? Or what shall i do?

 

[FoodFreedomNow]

While they "usually" take around 28 days to hatch, they can start hatching around day 26. If it's pipped, it's hatching, so I'd raise the humidity and stop turning them - early lockdown, basically.

Early hatching is often an indicator that your incubation temperatures are/were higher than optimal. Do you have an independent thermometer to check the temps, or are you relying on the incubator's display?

You may also find this article helpful. The author also mentions his eggs typically begin hatching on day 26.