You are welcome to start posting fics whenever you like. From the week you post your first fic we start counting the weeks you have written. It doesn't matter if you start this week or the next.

The only restriction is that you have to post a fic that uses the prompt for that particular week. During Christmas time we are giving prompts ahead of time which we don't usually do. In other words if you post a fic this week you need to use the prompt "Rope", if you start posting next week you should use the prompt "Nowhere"