Candling question

[Newchickgrandma]

What does it mean if there are veins but I can't see an embryo? Three or four eggs are like this. The veins seem to lead up into the air cell. I'm on day 4 with shipped bantam eggs and have kept the air cells up in the incubator.

 

[Lillith37]

On Day 4 the embryo is going to be very small still. If you can see healthy spiderwebbing veins then the eggs are developing well at this stage.