Soul, I am so sorry to hear you had such a horrible visit. That is not how you should walk out of your scan. I don't blame you at all for being upset. During our u/s the dr said that we were still spot on for our dates, no changes, but then my OB showed me the report and it said that we were due on the 3rd March but that the foetus was measuring 5 days less than what it was - we decided it was a typo and ignored it, but I also got rather upset at the time. That midwife sounds rediculous, you can request not to have her again. I hope you start to feel more cheery soon. I would also go by when you think your due, after all, you know when you did the deed and I would say impossible to fall pregnant 3 weeks after that!! Take care Soul.