Chorionic Villi Sampling (CVS). During the 10th to 13th week of pregnancy, a small sample can be taken from the placenta, a membrane that partially surrounds the developing fetus. This procedure is performed either transcervically (through the vagina) or transabdominally (through the abdominal wall).
Amniocentesis – During the 14th to 24th week of pregnancy, a sample of amniotic fluid can be drawn. The amniotic fluid, found in the sac surrounding the developing fetus, contains fetal cells that can be used for DNA analysis. Sampling is performed transabdominally—a needle is inserted through the abdominal wall to extract amniotic fluid.
Both of these procedures, which are used to test for genetic birth defects and other possible health problems with the baby, are performed by an OB/GYN. Because the procedures are invasive, there is a slight risk of infection and a smaller risk of miscarriage. We urge the mother to consult her OBGYN for more information about these risks.
You will need to pay a separate physician’s fee for prenatal sampling, ranging from $500-$1,500. If the mother is having the CVS or amniocentesis sample collected for medical purposes (in addition to paternity), her insurance company may cover this fee.