I'm 37.5, am in week 28 now and did the amnio in week 18. Was afraid but my husband didn't want to risk having a DS baby. I took a long time to decide and your stats 1/800 are great (same as a woman of 25). Mine was 1/249, below average for my age. A friend of mine who works at a hospital said that 0.5% risk of miscarriage included stats of miscarriage before ultrasound was used. These days, the actual stats are virtually nil of losing a baby thru amnio coz almost all docs use ultrasound. But there are cases. If I had your stat, I wouldn't have done the amnio. My best friend who was almost 40 had 1/800 also and did not do amnio and she just had a healthy baby.
