Actually from when I was in my mom's stomach. My mom says it's impossible and I totally understand her, but I know that my uncle talked to me on his death bed, before I was born.
My mother remembers that day clearly and have confirmed what he said, but she refuse to believe it.
If that's not a memory, I don't have any other until I'm like 6 years old or so. I had a wonderful childhood with two loving parents, but I can't remember stuff from when I was a little kid. Most memories I have is from when I'm like 12.