I see that now

I have had a feeling that one of them is already acting broody. Refusing to lay during the night and early morning, making new nest and laying her eggs there. Now with the eggs in their house she stopped visiting her own nest and did the egg laying inside the house. There was some egg turning as well, because they were positioned in perfect circle and the nest was somewhat enlarged to hold that many eggs. I think they do show some interest, but it might be too early because their hormone level is not high enough.
Perhaps their gathering around the nest full of eggs tonight was about who gets to sit on them and who doesn't.
PS: Yesterday, I only saw one hen noticing the eggs. Others ignored it and went straight to the opposite side of the house where they sleep - and poop.