I had it done because I wanted to see bub, and in part I wanted to be informed as well as I was stressing that something was wrong. I knew I would never terminate the pregnancy, but I just needed to KNOW. For me I was stressing so much that not having it done and not knowing would have caused as much stress as having it done and getting a high risk (though I ended up finding something else to stress about anyway ).

I think if you're instincts are telling you to not worry about getting it done then I wouldn't.