Once while hiking with my dad, I had to go to the bathroom, and he told me to go behind a tree. I asked if it would hurt the tree and he said no, it's actually good for the tree and will fertilize it to help it grow. Later I learned that woman became pregnant when the father fertilizes her, and assumed that he did this by urinating inside her.
A childhood belief about getting pregnant

others believed things like this
- I used to believe that a tree would grow inside you if you ate the seed of an apple or any other fruit!Anon
- I used to believe that if you ate the pips in apples a tree would grow inside your stomach.— QueenB
- When I was little I use to belief that if we swallowed the pit of a fruit, a tree would grow inside us.— Maya
- When I was five, I believed God was big as a tree, a tree being the biggest thing I could convieve of.
— Chris - I used to believe that the Doller Tree store was an actual tree.Anon
- I used to think that partridge in a pear tree was "cartridge" in a pear tree(christmas song)— Erica