Are my chicks stuck to the cell membrane?

[chickens0]

It's my first time incubating/hatching chickens, My family and I bought this dinky little incubator that only fits about two eggs but works great we're about 10 days in, the eggs have only been in the incubator for two days but they were under one of our chickens for about a week, we had to move them because some of the other hens were trying to break the eggs, anyways since we have such a cheap incubator we have to turn them ourselves, I've been turning them 5 times a day but when I candled them today they looked like they were stuck to the side. I'm not sure how to tell if they're stuck but one of them had a dark line down the side (this eggs dark brown and is hard to view inside when candling) and the other just seemed like it was stuck. I could be mistaken but I am definitely concerned that they're stuck to the membrane. I will post pictures of the eggs tomorrow but for now could someone help me just based off the description I gave?

 

[chickens0]

Quick update, I candled them again and moved the egg a bit an saw the embryo moving but all of the veins are attached to one side of the egg, is that normal?