Paternity testing is available for pregnant women and requires the genetic information of the fetus, i.e. the DNA of the fetus, which can be obtained during the early stages of pregnancy by taking the chorionic villi, and during the middle and late stages of pregnancy by taking the amniotic fluid or umbilical cord blood. However, any method of obtaining genetic information about the fetal baby carries certain risks, which may lead to the occurrence of miscarriage and premature birth, as well as the possibility of inducing infection. Therefore, it is important to carefully communicate with your doctor before determining to have the test, to clarify the risks and complications associated with it, and to make a careful decision before scheduling a specific test. There is a waiting period to obtain these genetic data, as they need to be cultured and analyzed by the relevant laboratory tools before a definitive report can be issued.