First, know there’s no “right” or “wrong” answer to this one. Folks have all kinds of different opinions (and like it or not, you’ll probably hear more than a few), but it truly comes down to what you and your partner are comfortable with. Click through the articles below for more info. What do CVS and amniocentesis test for? Is my baby at increased risk for birth defects? Do CVS and amnio cause miscarriages? How can I reduce the risk from tests? Why should I consider diagnostic testing? Do I need to speak with a genetic counselor? What’s the difference between CVS and amnio? Which should I have? American College of Obstetrics and Gynecologists. Your Pregnancy and Birth. 4th ed. Washington, DC: ACOG; 2005. Please note: The Bump and the materials and information it contains are not intended to, and do not constitute, medical or other health advice or diagnosis and should not be used as such. You should always consult with a qualified physician or health professional about your specific circumstances.