How Long is Babby Formed?
December 16, 2010 9:49 PM Subscribe
"Normal" human pregnancies last 40 weeks, right? Well, no; they can vary quite a bit by the mother's
race,
age,
number of previous children,
family history of delivering early or late,
home state,
work habits, and even
the fetus' HLA type. So where does that "40 week" thing come from?
Oh, dear. So check out this
super-nerdy pregnancy statistics website, from an engineer mom who is
collecting data from the public (see the
raw data and
auto-generated graphs, and
read the FAQ about the survey, with more cool graphs). Looking for
day-by-day probabilities on when that baby's due? This would be
your stats table with daily prediction (adjust dates at top of page as needed). Of course, you could always shut up your constantly inquiring relatives and friends
another way.
posted by Asparagirl (45 comments total)
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posted by The World Famous at 9:56 PM on December 16, 2010 [12 favorites]