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What type of thermometer are you using?
The only thing I can tell you so far is either your thermometer is off and your temp is lower then you think, Your babies might just be late bloomers (I know someone who had an egg start to develope on day 10!) OR you might have duds...
When you candel them, can you see an Air Cell?
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No Air Cell is good! I would say give it a few more days! Like I said you might just have late bloomers which can happen.
Are these shipped eggs or eggs from your own stock?
Your temps are fine. I don't really check/toss until after day 10...By then I can usually see development/not. Dark eggs are the tougher thing to tell.