i went out to buy a light and i don't see any veins but the eggs are small and hard to see anything but i do see a dark shadow more like a ball but i only put them in on late friday night so i was thinking about try again in a few day to a weeks
You can see veins all the way up to lock down day if you have light eggs. Even with a flash light. If your eggs are dark, then it's hard even during the end of the first week with a good candler. But what you will see more of as the baby grows, is a dark shadow, and hopefully that shadow moving. And, you may get lucky and see a foot stick down away from it's body, do a little leg and toe show for you, pretty cute. That can happen during the second week.