Device free and drug free method is something that many couples from all across the globe successfully rely on when it comes to identifying the fertility period of a women and abstaining from the intercourse throughout those periods. However, it requires about 10 days (at least) and 20 days (utmost) depending on length and predictability of the cycle in order to achieve lowest failure rates anywhere from 1 to 10 percent. The average rate of pregnancy preferring this method is about 20%, apparently far less compared to 80% rate experiencing not any method at all. The pregnancies rate taking chances ...