How The DNA Is Tested
It will then be analyzed alongside the DNA samples from the mother and the suspected father. Using an algorithm, they will compare genetic markers between the fetal DNA and the father’s DNA. This test will then provide the answers you desire.
A result should be ready within five to seven working days, but some places offer an express testing option. It should get the results to you in three to four days. For express testing, most situations require the mother to be at least ten weeks pregnant.