So sorry scan didn't go as well as you had hoped. When was your lmp? I got my first bfp at 8 or 9dpo on 20th June and I'm only 5wks 4 days now (So I actually got a positive when I would have been 3wks 2 days going by lmp). It sounds like maybe you aren't as far on as they thought since our dates seem similar. My period would have been due 25th or 26th June. Hope this helps x