Well, I hate to be negative (and I'm not TRYING to be - just sharing my experience)....but.......here goes.
I have had 4 pregnancies and births.
I went to 2 weeks over with my first.
With my second I was SURE I was going to go early - I just felt like it!
Well, I went at 41 weeks and 2 days.
With my third I was fully 2 weeks again.
My fourth I was committed to just letting my body do what it wanted to do! I went 43 weeks and 4 days. I was not willing to wait any longer. I took castor oil and out she came! ;o) She was 10 pounds. Not doing that again this time. she was perfectly healthy, but no, not again, it was hard, she was heavy and it was hard carrying her around inside of me those last three weeks!
so for me, it is definitely a pattern. I have always had long cycles too, between 37 and 50 days.
How are your cycles? This pregnancy I actually had 4 or 5 "perfect," 28 day cycles before I got pregnant - so I am wondering if it'll impact my delivery time at all. We shall see!!