Is this the adjusted risk or background risk? Your gynae should advise you whether to go for harmony test which is 99% accurate but its not a diagnostic test too.
There is still a risk of error in Oscar testing. The only 100% accurate way to find out if there is genetic abnormality is through amniocentesis.
Ur gynae will advise u based on the result
Try getting Panorama
If u r concern, you can take Harmony or Panorama for peace of mind. Take care and all the best!
Diana Chew