Shared this earlier. Very important. :) "Traditionally, pregnant women are assigned a due date 280 days after the onset of their last menstrual period, the researchers write in an introduction to their study. Only about 4 per cent of women deliver at 280 days and only 70 per cent deliver within 10 days of their estimated due date. Typically, the variability in gestational lengths is thought to be due to mistakes when estimating gestational age, largely because methods to determine conception date are imprecise. The authors also note “another source of variability – and perhaps the least understood – is normal variation in the pace of fetal maturation and the timing of natural delivery. The possibility of natural variability is plausible, but little discussed in the literature.” Read more: ctvnews.ca/health/length-of-human-pregnancies-varies-by-five-weeks-study-says-1.1401629#ixzz2depG7QgQ ctvnews.ca/health/length-of-human-pregnancies-varies-by-five-weeks-study-says-1.1401629
Posted on: Sun, 01 Sep 2013 16:03:48 +0000
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