thank you lovesmycakes I may well look into that, although the hospital have been so supportive and informative, can't fault them at all.
In case anyone else end up having the CVS (we had that instead of amnio in the end) its really not so bad. It's very quick, over and done in 30 seconds, and we were then sat in a quiet room with a cuppa until I felt ready to leave. I've now got tummy ache but thats normal and expected.
I'm now sat on the sofa, feet up and waiter service (DH!). We will find out results Monday or Tuesday but phone, I'm planning on switching my phone off so they call DH, and in the meantime I've put myself in a nice cosy box of denial about possibilities.