Our chickens started laying at slightly older age because they were born in the fall and that slows their start of lay a little bit. Our first fall chicken started at 22 weeks and our spring chickens (BSLs) started at 18-19 weeks of age.
This is the list of when each of our 13 fall chickens started to lay, so that you can see the difference in our 3 easter eggers compared to the other breeds. One EE started very early (even beat the leghorns), the other 2 started 2 & 3 weeks after our first egg was laid. Your EEs will probably start anytime now.