Um, I assume you would have already had your ante-natal screen (BTs) done, probably through your fertility clinic. You having the 12w NT scan? Are you being talked into an amnio or CVS (I'm 35yo so my GP was asking me about them today)? I'm having the 12w scan, no further testing unless risk is high for something. I don't want any OB/GYN care, just want midwife care, hence Calvary.