I've had my result back and my risk is 1:310. The nuchal thickness was 3.1mm so that is what has made the risk increase. I know that 1 in 315 is still low risk and you wouldn't bet on a horse with those odds, etc., but I still feel on edge with that nuchal thickness and just can't relax. Just wondering if anyone else had similar risk and worried as much as me. Am I being neurotic?