Hi Catmommy. My ticker is 10 days behind my LMP due date because I had longer than usual cycles, so that's my best guess at when I'm due, but I won't know until the scan. I'm similar to you, I'm "supposed" to be getting on for 9 weeks but I've just passed the 7-week mark.

At 7 weeks the heartbeat is rather irregular, I believe, and you could always have ovulated and conceived later than you thought. I've not had many symptoms either, the only reason I know I'm pg is because of a blood test done to find out why I was so late!

Best of luck to you for the next scan, maybe your baby will be a bit small and that's all. Has to be better than it being twice the recommended size and trying to squeeze that out at 40 weeks!