Thanks Jellybean for posting that article. It was so interesting and great how it was all referenced. As you say, each to their own and people have us for many diff reasons but I also like to be informed as to the pros and cons of everything. FWIW I decided just to have the 20 week scan for this bub but with DD I had about 4 which wasn't a problem but thought if I can lessen the number this time within my safety and comfort zone I will. Mind you, if a GP or ob said I really think you should have one for reason XYZ and I was happy with their opinion I would have another u/s but so far happy with my decision.