Please know, that you are not considered, from a medical perspective, to be "post-dates" or "overdue" until after 42 weeks! : ) Here is some great information on post-dates, if you are interested in learning more about the subject.
http://birthwithoutfearblog.com/2011/08/22/what-acog-has-to-say-about-due-dates/ (This author has gone PAST 42 weeks with at least two of her pregnancies.)
http://www.acog.org/Resources_And_Publications/Committee_Opinions/Committee_on_Ethics/Informed_Consent (ACOG statement on informed consent)
http://www.aimsusa.org/ppbr.htm (Pregnant patient's bill of rights, per the American Hospital Association)
http://www.aafp.org/afp/2004/1201/p2221.html (ACOG guidelines on post-dates "overdue" pregnancies)