When it comes to Calendar methods, they hit the first rank among the earliest birth control schemes of all the times. With calendar methods, you’ve extremely high chances of getting pregnant. The calendar methods perform by determining the possible day of ovulation in accompany with assistance of the doctor. For this purpose, a woman should keep her menstrual cycle record for a year or more and the doctor will be able to locate the “safe” and “unsafe” days by analyzing the record. The method actually relies on the women who have a regular 28 day cycle along with the ovulation that ...