dh has told me about a colleague at work who after 3 unsuccessful IVF's is finally pg at attempt 4. She has been told (after tests) that she has 15/1 chance of a Downs baby (she's over 40) so she's now going for amnio.
Would you? - I don't think I would - the blood test can be wrong and there's the risk of abortion with an amnio (iirc) and after all that trying I don't think I'd risk it. Must be an horrendous time for them though! Some us don't know we're born!