If she is Karin and Sasuke's child, then I don't think it really matters if Karin is the mother since Sakura raised her. The reason I think she might be Karin's child is because she seems to sense her dad in the forest. That is KARIN'S ability, not Sakura's. That is what had me thinking she was Karin's. I have heard people say Karin is with Suigetsu, but I have seen no images that have shown this pairing. Why would it be bad if Karin was the birth-mother, if she is, she most likely died in child birth. She's no threat to SasuSaku. I just want someone to explain HOW she has the sensing ability if she is Sakura's biological child. Once that is explained, then I will agree 100% that she is Sakura's biological child. As I said though, IT DOESN'T MATTER WHO HER BIOLOGICAL MOM IS, SAKURA IS HER MOM. I just don't see why some fans aren't questioning the sensing thing. It is like they are afraid of the possibility, which makes no sense to me since Sakura got Sasuke in the end. She won.