Advice on announcing

So just got back from our honeymoon where we found out we are expecting our first baby!! We are so excited! I'm only 4 weeks and 5 days hoping to call Monday to schedule our first appointment but just wondering when everyone announced their pregnancy? I know a lot wait till the first trimester is over but I don't think I will be able to last that long! Advice, or what did you do? Thanks nervous and so beyond excited!