People who have vaginal sex without birth control have an 85 % chance of getting pregnant within a year. (plannedparenthood.org)
You or your partner doesn't want to avoid vaginal sex or use another form of birth control for a certain number of days each cycle. (plannedparenthood.org)
Besides, you don't necessarily need to indulge in oral, anal or vaginal sex in order to get infected. (topherpesdatingsites.info)