Procedure of a DNA Paternity Test during Pregnancy | $450 Legal DNA Paternity Test - Don't pay less. You get what you pay for! Prenatal DNA testing can be performed during pregnancy and are the best way to determine the biological relationship between the father and a baby. If you are pregnant and want to do the paternity test then there are some tests mentioned at https://faceitdna.com/procedure-dna-paternity-test-during-pregnancy/