Can I Determine My Babys DNA While Pregnant? It is possible to
determine your baby’s DNA while you are pregnant. There are two
specific tests, the amniocentesis and the Chorionic Villus
Sampling (CVS for short) that are often done during pregnancy to
test a baby’s DNA. There are several reasons that parents might
want to determine a baby’s DNA while pregnant. These might
include paternity testing, gender determination, or testing to
determine whether the baby is at risk for specific genetic or
birth defects. The timing of DNA testing during pregnancy is
crucial. There are essentially two specific windows of time in
which DNA testing can be done. The first window is between the
10th and 13th week of pregnancy. During this time, a CVS can be
done. With CVS, your health care provider will insert a thin
tube or needle into the vagina, through the cervix, to try to
obtain little finger-like pieces of tissue attached to the
uterine wall, known as chorionic villi. Your health care
provider will use an ultrasound to