Intermediate risk for down syndrome

Hi mummies. Im at 12w 6 days and just went for a downsyndrome test. My result is 1:445 which is intermediate risk but im quite worried. anybody has ever such result but baby turned out normal and healthy? Thank you. Also just to rant a bit, the sonographer was very rough & made me worry unnecessarily as she keeps saying n sighing when she couldn’t detect the nasa bone. Made me very worried n uncomfortable in that room 😢#advicepls #pleasehelp #firstbaby #pregnancy