TWIN duck egg??

[eriin_jeanxo]

It’s a bit hard to see, but there are 2 black dots in this egg. it almost looks like they move independently of each other. Could this be a twin egg?

 

[Kiki]

It could be.

 

[KingD]

Possibly a double yolker.
More often than not the chicks don't make it unfortunately.
Keep us updated

 

[Chicalina]

several of my eggs look like this on candling.

I'm thinking one black dot is the eye, and the other is the heart.