In the past, a couple had to wait until the baby was born to perform a paternity test. Today it can be done as early as the 7th week of pregnancy. Paternity test while pregnant is a process that allows expectant mothers to determine the biological father of their unborn child. While traditional DNA paternity tests are typically conducted after a baby is born, there are now options for testing the DNA of the fetus during pregnancy. These tests can be conducted through a blood sample from the expectant mother and a cheek swab from the alleged father. A sibling DNA test can also be performed during pregnancy to determine whether the unborn child is a full sibling or half-sibling to any existing children. There are tests without legal validity and tests with legal validity, so it is important to know the difference between them and whether you should use …