A childhood belief about getting pregnant

I used to believe that you could choose the sex of your child because of what a classmate told me in the fifth grade.

I thought that if you wanted a boy, a man inserted his penis in a woman's vagina. If you wanted a girl, a man would insert his penis in a woman's anus. And that if a man urinated into a woman's vagina this would create conjoined twins.

I was a gullible 11-year old