Whats everyones due date!!???

Well after going to a different er last night they told me that I am 4 weeks 5 days. ( especially since I was told last week my pregnancy want even viable) I have two different due dates. EDD by LMP 3/20/2016 EDD by measurements 3/6/2016. My youngest daughters birthday is 3/27/13. My two oldest shate a birthday month and now it looks like my two youngest will too. Whats everyones due dates??