Had my scan on Tuesday and had the combined test. Been worrying about the phone ringing since and was convinced being 37 was goin g to give me an automatic screen positive. A letter from the nhs arrived this morning.....panic.......I was told 2 weeks for written confirmation of a negative. But it was negative, they got a move on with that! So my result was a 1 in 2300...PHEW! Was wondering how this compares with others, yeah I am still worrying!