Is it still living?

[Lillibird16]

Today is day 13 for my Cayuga duck eggs, but not sure if one of my eggs is dead. In the beginning I knew that my egg was living and saw it moving inside now I see no movement and the egg looks funny. If you could help that would be great, I don’t want it to explode if it is dead and harm my other eggs.
Sorry for the bad photos!

 

[Fluffy_Farm_Friends]

I haven’t done duck eggs before, just chickens, but if I were you I would leave it in the incubator. If It is rotten then it should smell before exploding. If it does start to smell I would take it out.

 

[Fluffy_Farm_Friends]

Have the veins disintegrated?