I had a 6week scan, but that was because I thought I had had a miscarriage.
Or, at least, I had had a + test, and then a few days later half a day of bleeding, and then at the GPs a test was still +. So, he sent me to check whether there was anything there, or whether it was a false result because of miscarriage......
Just a blob with something flickering in it on the screen.
Very weird because the person doing the scan at the hospital had no idea why I was there, so just very calmly and matter-of-fact said (to quiet little 23yr old who did not actually think she was pregnant in the first place, and had just had her period- ie, no miscarriage!), "ah, look, there's the heartbeat, and I'd say you'd be due on the 15th June".... calm as you like.
written all over my face.
Slunk back to poor unsuspecting (now husband) partner and told him the news.... he did not speak for 3 days. The shock, you see.......