i know the feeling of confusion hun, last week my docs realised that they have 3 due dates for me, and they are 4/6, 11/6 and 18/6!!
we had been going with 18/6 but then saw that this was the dating scan, with my dates from my cycle my due date is 4/6. im not really complaining too much as this gives me a greater window before they start wanting to induce me for being overdue but still really inconvenient!!

hope u avoid induction, it would be much better to let bubs decide when to appear!