Your girls are laying bigger eggs then you think. I pulled up a usda chart to size eggs. According to it, Peewee eggs are 1.25 oz. Small start at 1.5 oz, silkies are supposed to lay in that range. Medium starts at 1.75 oz. Large, 2.0 oz. x-large 2.25 oz and jumbo's are 2.5 or bigger.My barnyard mutts lay small eggs no bigger than my silkie eggs - but maybe my silkies lay big eggs! I must weight them… BRB…
Blanche - 2.5 oz
Misty - 2oz
Whiskers - 1.8oz
Rose - 1.9oz
Marty - 1.3oz
EDIT: Fluffy started back laying today with a 1.8oz egg! Big egg for little chicken!