Yes. This is normal. My only concern is that when the earlier chicks hatch, if under a broody hen, the hen might leave the nest to raise those chicks before the others hatch. If they are in an incubator, I wouldnt worry. Good luck with them!
These are in an incubator. What about the eggs that you can see the embryo but no veins? Is that ok? I’m a first timer and I’m so stressed about them all!