I was almost sure it had died. At the end the egg turned almost black all the way around but it came out perfectly healthy! Never had a egg do that before.
Well then bruise was actually blood that had pooled around the egg so I guess it ruptured something while hatching, a beautiful Ancona duckling hatched from that egg if anyone runs into the same issue.
I have a few duck eggs that are pipping and Zipping. This one has been discolored since yesterday and now it’s trying to zip. What is going on with the outside of this egg? At day 10 it had several black spots in it but was still moving around so I’m at a loss as to what this is.