I always go around 41+ plus weeks. In fact, my last (#5) child was the latest, hence the title under my name. He was 41+4 days according one date, and actually 44+ according to my LMP! I know you've heard it all, but this is what helped me. With #3, my first that was not induced, I had my membranes stripped at 40+6 days. I gave birth 10 hours or so later. With #4, it was a combo of sex, followed by lots and lots of walking (I know it's tough with this weather--my last two were August babies. The mall is good for this.) With #5, I ended up using a black & blue cohosh mixture to get things going.
Well, when I always found myself in this situation of being past due and fed up, I just kept reminding myself that there is NO WAY I am going to pregnant in say, a month from that point. It's slightly reassuring.