Just had a read back, and A1983 I see your question abt the scan... I say go for it. I was scanned at EPAU at 7 weeks, saw HB and a small white "blob", then private scan at 10 weeks, and the difference was amazing, arms, legs, wriggling around....! Then back to routine nhs scan at 12 weeks.
If for no other reason I'd go for the private scan for the "extras" you get having paid for the scan. Just things like when I lay on the bed there was a wide screen tv on the wall in front of me, and I saw everything that was on the sonographers monitor, but up on the wall. When I went for 12 weeks scan the lady was saying "I can see babies legs, feet, stomach, skull, arms, hands..." And all this time hubby could see, but I couldn't coz she has the screen facing her. I didn't see until the end when she did the full body shot, and showed us the still she had taken to do our picture from. So I certainly didn't see half when I had seen at my private scan. Also, I came away with about 10 different pics from my private scan, one with its arms outstretched, one with legs crossed, etc, where as nhs scan I got three pics, £4 each, and all the same, not even 3 different shots. I got three so I could give both our mums a copy each, and I didn't begrudge the £12, but again it just shows the difference between being a paying customer and being an nhs patient!
Also, I love it that I've got three sets of pics, all a few weeks apart and can really see a huge development in each stage... I have so much more than most women would have at this stage, they'd just have the one pic from the 12 week scan.