It's kind of sad, but at the age of 16, my best friend thought that the day after you had sex, you'd know that you were pregnant because you got morning sickness. I had spend hours - literally - explaining that the morning after the egg is probably newly fertilized and not even emplanted in the Uteran wall. She thought for sure the day after sex you'd have a baby in there.
A childhood belief about getting pregnant

others believed things like this
- i used to think that PMS stood for "pregnancy morning sickness".— confused little girl
- when i was small, i thought if i don't sleep then morning wouldn't come..— lily
- A friend of mine used to think that you got pregnant from eating baby food.— Jemima
- In kindergarden my friend told me that there were 24 hours in the day and 15 hours in the night.— Cari
- I thought that a woman got pregnant kind of like catching a cold, by being around her husband for a long time.— No Name
- The sun switches off at night and on again in the morning — Edward