Are my duck eggs close to hatching?

[Brahmachicken240]

The incubator is on 37.5 C. One duck has internally pipped. The due date was just an educated guess based on candling. I originally found the eggs under the momma but she was nesting in an unsafe place and I was scared if I moved her she would abandon them so I took them inside and put them in my incubator.

If one is internally pipped then it would indeed be best to put them into lockdown now. Looks like you’re in for an early hatch