Are these from two different chickens?

[cadenrupp]

Congratulations on getting your first eggs! That's from different chickens. When our Red Sexlinks first laid, there were 3 eggs of different shapes and colors at the same time. It's funny how it works like that, isn't it?

Thank you! Yes, it is.

 

[aart]

Color and size can change but shape stays pretty much the same.
I vote 2 different birds.

Here's some tips on how to tell....
https://www.backyardchickens.com/articles/who-is-laying-and-who-is-not-butt-check.73309/