When should I start planning my childs birthday party? is 10 weeks too soon? Posted In: Mums Chat Keymaster admin on bbPress Reply 18th October 2016 at 8:31 pm # 1422 HI Everyone, When is the right time to start planning a child’s birthday party? how many weeks before should i start giving out invites? Do you set limits on numbers, is it not “Politically Correct” to not invite the whole class? What are your thoughts on this topic? Viewing 1 post (of 1 total) You must be logged in to reply to this topic.