Saw the midwife for the first time, at nearly 12 weeks! From the date of my last period, I worked out that my EDD is 12-2-09. (Every internet site has told me this too) Yesterday, the midwife looks at my dates and says it should now say I'm due 15-2-09 because they are calculating it different now. WTF? She wouldn't really explain it to me either, just saying the hospital calculates it differently than the GPs. Why are they doing this now?