Yes a paternity test can be done while you are pregnant. It is done around the 14th- the 24th week and is accurate. The procedure is through an amniocentisis. My son is having his other half do this so I know first hand that this can be done.
Can U Get A Dna Paternity Test Done While U R Pregnant ... How Early Into The Pregnancy Can U Be To Take The Test?
When the baby is born, how long will it take to get results back from dna test? Can mother put a father's name on birth certificate before dna results come back?
I've never heard of a paternity/DNA test that can be done before the baby is born. Even then, the test costs a few hundred dollars.