How do I determine last day?

skittlesj526

Hello! This is our first child! My EDD is June 16th. I am a 4th grade teacher and am on my feet quite a lot during the day. I am wondering what you guys think about a possible last day or should I just try to make it to the end of the school year, which is May 31st for my students but June 4th for me as a teacher. I plan on asking my OB at the next appt, but was hoping some of you helpful ladies could share your experiences. Thank you!