Kezzer, I hope you don't think I am being rude,....
Sex. It can help to start uterine contractions and there is a chemical or hormone that is transferred that can act in a similar (but more gentle) way to prostiglandin (sp?)
Either way, baby will come when he or she is ready. Stephi, my first, was a WHOLE week overdue. Yes it was the longest week of my life!