Tonight I candled 42 eggs this is day 8. I pulled 11 eggs out that I thought were infirtile cracked them to be sure and to my surprise 2 had embryo's in them. They all looked like they were infirtle to me no mass or blood veins that I could see. Did I over look somting? The rest of the eggs had mass some had blood veins and others did not that I could see. I forgot to mention the eggs are brown does this make it harder to see viens?