I'm on day 15 (at midnight will start 16) and out of 7 eggs, 1 of them is porous. I do see movement in the other 6. But the porous one i'm not sure. When i look i see a "shadow", no movement, and not really seeing veins. I numbered the egg in red and i don't think i'm seeing veins. Sometime if i turn it a certain way I think I can see a very faint vein. It looks nothing like my others. How long should I keep this egg? I was thinking about tossing it but am not sure just yet.