@Trr: I saw my embryo at 5+6, heartbeat and all, and still, none of this feels real to me either. Actually that was a week ago today and the assurance of having seen it and it for sure being there and OK has already worn off. I think if it's still there at my next (10+3) appointment and OK, I will probably start believing it a bit more. I don't *feel* like there's anything wrong, so just rolling with it.
And this is where I force myself onto the treadmill, because so far it's been an energy booster for me, once I get on there.