Ladies with due dates that fall at the very end or very beginning of a month, how did you announce your due date?

My due date is May 31, moved up from June 1. I'm trying to figure out how to announce my due date/month when I announce since my baby could be born either in May or June. Should I say "due at the end of May" or "due May/June 2017" etc? I know most babies don't actually arrive on their due date. If your due date falls at the very end or very beginning of the month, what did you say when you announced?