I think Silkies lay white/cream eggs.
Maybe both girls are laying!

I have 2 EEs and the one who started laying first just lays smaller eggs. Same age, same breed.

I got my first brown egg yesterday! Could have been from one of my BO's or my BR
The blue egg on the left is from my EE who started laying Friday. That's her 2nd egg.
The far right is from my other EE who's been laying a little over 2 weeks.