Anyone else take a DNA test from ancestry or 23 and me and find out you have a half sibling? I am 63 and totally shocked. When my Dad went off to WW II he was casually dating my Mom and she dated others while he was away. They married when he got home. While in England he conceived a child. We have no clue if he ever knew about the child. I have a half sister. She contacted me as she is doing the family tree. She said her Mom mentioned it once and said she was in love with my Dad. She seems very nice. I sent her photos and the family history that I have.