Amazing. I am always awed by the life God has given. I have Quail hatching this morning. I almost gave up on 'em. Good thing my wife has more patients then I do. 16 to 18 days for Quail. Today was 25 days. The 1st pic was our surprise that we woke up to. The second pic is the second chick hatching.
Ya never know. You can candle after 7 days. You don't even need to pick up the egg just put the light against the shell. You will see the embryo and the vein structure start to form. As far as falling off, it happens.
Keep trying. I've found that when incubating duck eggs fertility is at 80% tops. I just candled 20 I put in my incubator last week and 4 are duds. It's entirely possible the 1st 3 were duds. 2 Things I've found about any eggs, but especially water fowl eggs. 1, don't wash 'em. even if their...