It turns out that there are two ways to determine the baby’s due date. Neither are very exact, but since it’s quite wordy for someone to say that we’re due the “last quarter of May, first quarter of June”, they just give us a single date.
Of the two ways to determine a due date, Timed is the method you use from the beginning, where the doctor takes into account certain physiological (gals, you know what I mean…guys, you don’t need to know) dates, use their little magic wheel of baby time, and figure out when 9 months (or 40 weeks) will occur. To me, this seems like the method that makes the most sense.
The second way of determining a due date, which I call Ultrasonic, is done by measuring the ultrasound image. The doctor measures the baby, then thinks to herself, “hmmmm…if the baby is 1 pound 15 ounces, with a head diameter of 200 mm, abdomen diameter of 220 mm, and femur length of 35 mm, then I would guess that the real due date is 6 days earlier!” (actually, she just punches these numbers into her ultrasound machine and it chugs out the date)
Now, to answer Amy’s question of 2 days ago, either the baby is coming 6 days earlier than originally expected, or the baby is 6 days bigger than the ultrasound machine expects him to be when he’s born! Uhhhhh…I bet you can guess which theory Sarah prefers…
But both methods are accurate to +/-2 weeks, so this whole entry was immaterial anyways!