Do the veins still fade if they are late quitters? Like in the last week or so? I have duck eggs that are due in a few days, and there are 3 that don't look as 'full' as the others. The incubator they are in died in week 2, and they were cooled for a while, though not sure how long. I lost about 1/3 of the eggs I had in there. Anyway, these 3, one still has a lot of red veins, but is only maybe 2/3 full, then the other two, I can't really see veins, but they are more full than the other one, but they are not as full as the majority. The other 10 eggs are completely full, and I can see the ducklings pushing against the membrane in a few. Ok, sorry for the long drawn out post, but anyway, do the veins fade if they quit in the last week or so or not?