Calendar (Colum VCAL_VS3
   Birth                                     B
   Pregnancy                                 P
   Abortion                                  A
   Miscarriage                               C
   Still Birth                               S
   Not using                                 0
   Female Sterilization                      1
   Male Sterilization                        2
   IUD                                       3
   Injections                                4
   Implants/Norplant                         5
   Pill                                      6
   Condom                                    7
   Standard day methods (SDM)                8
   Lactational amenorrhea (LAM)              9
   Rhythm - Periodic abstinence              L
   Withdrawal                                M
   Other modern method                       X
   Other traditional                         Y
   Missing                                   ?