I found out a while ago that my bio dad (who was killed when I was 9) might not be my dad. I did an avuncular test, as well as a sibling test, and they both showed that he was, in fact, NOT my father.
I have tested 4 potential fathers, and all were negative.
One of the potential fathers I tested would have made my husband my first cousin.
My mother will not tell me who my bio father is. In fact, she disowned me because I did the intial DNA test and learned that she lied to me and everyone else. She worked for my husband's great uncle, and dated my husband's sister's ex husband. She was around a LOT of his family. I'm assuming that she's not telling me because there's something to hide........like the fact that we are related.
So, we have discussed having a blood test done to see if we are related. I don't know that I want that. I don't want our relationship tainted if we turned out to be first cousins, or something, and I just prefer to not know. But, that means I will never know who my father is, also. Ugh