How early in a pregnancy can a paternity test be done?
You can test by amniocentesis during the second trimester,
anywhere from the 14th-20th weeks of pregnancy. Risks include a
small chance of harming the baby and miscarriage. Other side
effects may include cramping, leaking amniotic fluid, and vaginal
bleeding. You can also test by chorionic villus sampling (CVS) from
the 10th-13th weeks. A doctor's consent is needed to do either
procedure for paternity testing.