Is this egg infertile 🥚??

[Bantam breeder2020]

I currently have two broody hens both sat on their own group of eggs. It is day 4 of the hens sat in nests and there still isn't much action in these eggs. There are 14 eggs in total and only 3 like this. So if anyone could help me, by telling me if these eggs are fertile it would so greatly appreciate. I'm new to this whole hands on role as I allow my bantams to breed naturally and choose whether they want to have offspring. So please some one help me determine if these eggs are fertile or not

 

[FeatheredFriends&Horses2]

Good luck with your eggs! I would say those are almost certainly infertile, however I personally would wait a couple extra days just to be completely safe.

 

[Bantam breeder2020]

Good luck with your eggs! I would say those are almost certainly infertile, however I personally would wait a couple extra days just to be completely safe.

I will, I normally allow the hen to keep all eggs till at least day 6 or 7 then will remove infertile ones. I'm just glad there's only 3 that appear like that.
Thank you