I agree with everyone else. The NT test (the downs test) is NOT 100% Reliable! And insurances are JUST now picking it up as a regular first trimester screening test. I chose to do it only to see my little baby and to prepare myself IF indeed I did have a downs baby or any other Trisomy baby. I am just a person who likes information. But I definately did my research going into it and knew the false positives on this test were high. It was just nice to hear the #'s of my "risks" of downs and Trisomy 13 & 21. If you don't want the test, they can't "FORCE" you to have it. I don't know your age, but usually before it's not offered till you're of AMA (advanced maternal age ~ over 35). Since the board passed the law, it's allowed by all 1st timester women now. But of course, all tests are "OPTIONAL".
Regarding the GBS test, I'm surprised it was given so early! We all have the bacteria sometimes, and it's ONLY important to treat during labor for your infant's sake. But still that only has like a rate of 4% of your baby contracting that during labor.
I hope that you stand your ground, and Please find a new OB! I'm sure that there IS someone who can take you! Having an OB that you don't like and disagree with is definately a stress on the pregnancy as you're more than likely to skip pre-natal care.
P.S. I was reading the link that one of the responders posted below... Here's some that apply to you:
Every woman has the right to receive all or most of her maternity care from a single caregiver or a small group of caregivers, with whom she can establish a relationship. Every woman has the right to leave her maternity caregiver and select another if she becomes dissatisfied with her care.* (Only second sentence is a legal right.)
Every woman has the right to accept or refuse procedures, drugs, tests and treatments, and to have her choices honored. She has the right to change her mind.* (Please note that this established legal right has been challenged in a number of recent cases.)
is the exact link.