I used to believe that 'girl' sperm were pink and 'boy' sperm were blue, so that if a pink sperm got to the lady's egg first the baby would be a girl etc. This was after a very colourful sex education film at school. I believed this until a worryingly advanced age.
A childhood belief about reproduction

others believed things like this
- I thought sperm were fish and when I got a goldfish I went around telling everyone i had a sperm— Kara
- I used to believe that a baby's sex was determined by whether the sperm had a picture of a man or woman on it.— David E.
- i had a freind who believed that at a certain age you bought sperm in bags from woolworths.Anon
- I believed that 4 p.m. was pink, and 5 p.m. was blue. I don`t know why.— blue
- I used to think sperm was invisible.Anon
- i got told if you rub your sperm on
your spots they'll go...
p.s i still try it but it never works— anom