You jump out of the pool and enter your mother's...you just close your eyes because you don't want to see it. You try to open your eyes, but find that you don't have any, because you're just a fertilized fetus, not even a real baby yet.
You spend the next nine months inside of your mother's uterus, until you were born. That's when you realize the horroring turth, somehow you have been born a girl.