My brother and I are fraternal twins—at least, that’s what I believed for my entire life. Growing up, we were told we shared everything: a birthday, a childhood, a bond that only twins could understand. Recently, just for fun, we decided to take one of those DNA tests.

We were curious about what similarities and differences we might have, since fraternal twins only share a portion of their genetics, like regular siblings. But when the results came in, they showed 0% genetic match. I stared at the screen, thinking it had to be some sort of glitch.

Zero percent? That wasn’t possible. Maybe we had mixed up the samples.

Maybe something had gone wrong at the lab. So we took the test again, this time being extra careful. The second test came back the same.

That’s when the uneasiness settled into my stomach. We decided to ask our parents if they had ever taken genetic tests or if there was any medical reason that could explain this. When we asked, they exchanged a strange look—one I had never seen on their faces.

A mixture of fear… and guilt. Finally, my mom said quietly, “Those tests aren’t reliable. You shouldn’t have taken them.”

Her evasive answer only made my panic worse.

Unable to shake the feeling that something was seriously wrong, I drove straight to the hospital where we were born. The clerk pulled up the records and confirmed that my mom, my brother, and I were all listed together. Relief washed over me—until the nurse frowned at the screen, hesitated, and then looked me directly in the eyes.