What are the odds of getting pregnant when you do not use a condom?

Answer

Various FAQs concerning chances of pregnancy, from Rutgers University Health Services:

http://health.rutgers.edu/discussions/sex/preg&birthcon/pregnancy.asp

World Health Organization (WHO) FAQ on effectiveness of condom use against pregnancy and transmission of sexually transmitted infections:

http://www.who.int/mediacentre/factsheets/fs243/en/

Another FAQ about condom use and effectiveness:

http://www.avert.org/faqcond.htm

Unless you are definitely trying to become pregnant, you need to use a condom at all times to protect yourself against various sexually transmitted diseases, some of which are incurable.

Good.