A due date is just a GUESS of about when the baby will come. A guess with a margin of error of about 2 weeks either way. What I don't understand is why doctors cause such a fuss over a date that is based on info that the patient gave them in the first place. Women are routinely induced based on this arbitrary number which often leads to cascade of more unnecessary interventions.
I was googling around and found this article quite interesting:
It says that some German OB in the 1800's came up with the 40 week gestation period and that it has been proven that it's not all that accurate, but it is still the standard used by Drs today. It confirmed what the midwife told me:
When researchers in the late 1980s followed a group of healthy, white women with regular menstrual cycles, they discovered that pregnancy in first-time mothers averaged eight days longer than this, or forty-one weeks plus one day. The average was three days longer than forty weeks in women with prior births. The researchers also refer to other studies suggesting that other races may have average pregnancy lengths that are shorter than white women.
And that is given that you are sure of your dates and have a "regular" 28 day cycle, which many women do not. W came a few days after his EDD but I think that my membranes were stripped without my consent. So that would have kicked things into gear. I know that the worst part is the mental stress that you feel when you pass that date. On top of your physical discomfort, you begin to doubt that your body will ever go into labor on it's own and the Drs seem to confirm that.
As much as I wish I knew when this baby is coming, you can't predict these things exactly.
True for you?