My RSL was first to lay, started laying consistently right at 16 weeks. Once they squat, eggs are coming soon! Congrats on a beautiful pullet egg, nice size and color for a first egg.
Here is my second girl who just layed her first. 16 weeks and 4 days. Goes to show you they don't need a big red comb to lay an egg. She's been squatting for a week now.
My third girl just layed her first egg just now. 2 days shy of 17 weeks. She has a big red comb but has never squatted. Just goes to show you they are all different.