Dead or alive?

[flipflopsinfall]

Looking for some opinions please! I have two eggs that look a little odd. Both of them have these dark spots and #4 has weird coloring on the shell. I am also not seeing many veins. They should be around 12 days old.
#4

#5

 

[FunnyfarmMidwest]

Looking for some opinions please! I have two eggs that look a little odd. Both of them have these dark spots and #4 has weird coloring on the shell. I am also not seeing many veins. They should be around 12 days old.
#4
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#5
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I think they might be quitters. The pictures aren’t looking promising, but I’d wait for a second opinion before tossing.