I had a u/s yest, it says i'm in 6 weeks 2/3 days but doesn't show fetus. doctor says it is blighted ovum, told me to see radiologist. what r my chances

Not sure: Did the doctor say you had a sac, but no fetal pole? You may want to consider having a blood HCG test now and in 48 hours to confirm that it is a blighted ovum. If your doctor performed an ultrasound, i'm not sure why he/she would send you to radiologist. Best would be to test your hormone and see if it's rising or falling. You need more information at this point.