Anything below 1:300 is considered high risk in Australia and CVS or amino is generally offered, anything above that - like yourself is considered low risk. The risk of miscarriage in undertaking further testing will be a higher risk than the risk of anything being wrong. When my results came back I had a risk of 1:250, we elected to have a CVS but in researching then the risk of miscarriage was still greater than something being wrong.