I know its not okay to take the egg out of lockdown, but i was very curious. I saw online that the chick at this stage should be completely filling the entire egg. However, 1/4 of the egg (from the small end), light passes through as it were egg white. I am concerned for candling on day 18 should have the chick filling the entire egg but it is day 21, and I feel like the chick is very small. The eggs are alive though, one of them is rocking back and fourth occasionally. Is something wrong, or is it normal? Also one of the eggs has this black mass inside the see through area along with veins leading into it, which seems concerning.Its also tinted red around this area. This is the chick that rocks back and fourth too!