DNA tests can be done at home or you can go to an expert to have DNA paternity tests. The ones done by professionals are, of course, more accurate and at home DNA testing will not be accepted as evidence in a court of law. Nonetheless a home DNA test is a good way to start out finding the ancestry and paternity of any person.
Technology has come a long way in every respect, and also in respect of DNA tests. You can even get highly accurate home DNA paternity test kits, although these are not that simple to do and also cost quite a lot of money. If you are committed to the privacy that comes from doing DNA tests at home, then you should by all means have a look at the websites featured on this page where you will find more information about home DNA paternity test methods and where to order the kits.
A person does not have to be born yet for DNA testing to take place. Non invasive prenatal DNA paternity testing is now possible, but obviously this is done in hospital conditions by experts in the field. Under certain conditions certain people are eligible for a free DNA test. Ask your doctor about that.
Sometimes you will be wanting to find out not if someone has fathered a child but the ancestry of a person. This is where ancestry DNA testing comes into the picture. In this instance home DNA test kits are more than adequate.