How much do you know about sex?

Warning: This quiz uses anatomically correct words that people of a prude or catholic nature may find unsuitable.

1 What is a diaphragm?
2 What is a French Dip?
3 Which of these methods of birth control tends to be the least effective when used alone?
4 What is "Tubal Ligation?"
5 Can you get pregnant if you have unprotected sex while the woman is on her period?
6 How many sperm are in an average ejaculation?
7 What is the average sized of a penis based on most medical surveys?
8 Globally, about what percent of men are not circumsized?
9 How many sperm does it take to fertilize an egg?