Confused About Blood Type and Parents

Well, here I sit confused about why the woman I called mom all my life didn't tell me that my blood type made it impossible to be theirs. Let me explain why I find this odd; this woman would have told me if she had a difficult birth because of Rh factor problems. Not one word about it. I have no one left of the family that I know who could tell me. This woman told me I had the same blood type as my Dad. The man I grew up calling Dad didn't have the same blood type.

I wonder if somewhere I got switched at birth. I was never told I was adopted. I never felt like I fit into the family. Growing up I got some things wrong with me that no one knew what side of the family they came from but after a while, it was forgotten.

I was a caregiver to both the woman and man who raised me but until recently when my blood was taken to find blood type, I didn't know that the said people were not my blood type. The woman was A+ and her husband was AB+ and here I sit as a B-. Something is wrong with this picture right! I have been wondering how to find out what happened. I have been told by a couple of friends that even if the couple that raised me weren't the same blood type they had raised me.

I don't know how to explain the way I feel. I feel empty inside because something isn't right. I feel I don't know anything about me. I supposed it is too late to find out.