I didn't think I would go over, either. I pulled out all the stops yesterday and I'm going to continue to do the same every day in the hopes it helps, i.e., nipple stimulation, walking, sex (maybe not every day, I was way too tired to last night), epo, bouncing on the birthing ball, etc.
I think next time we have a baby, I'm not going to tell anyone my due date, just give people a range of time that the baby will be arriving in so I can forgo the harassment. Most pregnancies that aren't induced or have something go wrong, or end in a planned c-section, do go past 40 weeks.