Yep I'd do it.

I loved seeing the u/s on the screen, I just loved it, it was just the best feeling ever. And I know had I not got it done I would have worried, and if i'd had negative news I'd have worried so I figured I may as well get the u/s and see bub.

It wouldn't have changed anything, I wouldn't have considered termination and probably wouldn't have gone on for further testing unless they thought there was a really serious problem.