
Quoting
aaron
It is easy to do a DNA test if you have access to the child. There are numerous private companies which will send you a kit by mail for taking cheek swabs from both you and the child, which you then return for testing. There will also be local clinics and hospitals which offer DNA testing services - check the yellow pages.
If you're not the father, you may be able to get relief (although your time for seeking relief may be limited), but by the same token if you're not the father it's none of your business what name the mother gives to the baby.
Unless you come from a family of psychics, until you get the DNA test results they should really keep their noses out of your business. I mean no offense - I've just seen a lot of cases where meddlesome family members create a lot of suspicion, discord and hard feelings, and then... lo and behold, the DNA test proves them to be wrong.