I just thought I would post my experiences over the past week or so. My blood tests came back with what I was told was a "high" risk of downs and I was told by the fetal medicine midwife that my results were in the "worst possible 4%", e.g. 96% of people got better results than mine. This was a risk of 1 in 175 apparently. In the same phone call the fetal medicine midwife offered me an amnio for a couple of days later which I went and had.
I have now had the results back, and the baby does not have downs (not surprising given the 1 in 175 odds!), but the amnio and the few days after it were awful. They tell you the amnio feels the same as blood being taken - it doesn't, it feels like what it is which is a whopping big needle being rammed into your abdomen with no anaesthetic! After the amnio I had pain, and bleeding and we spent most of the weekend at hospital with DH and I terrified I was having a miscarriage. Bleeding has now stopped (fingers crossed, touch wood etc), but if I had the chance to do this over again there is no way I would have the amnio. If your odds are better than 1 in 50, I would not have the amnio. If I have another baby I am going to decline to even have the blood tests - at 28 my downs risk is low anyway, and I don't need the panic!