shed of

• The main reason for the unwanted pregnancy among married women was contraceptive failure ( 73 . 1 % ) , mostly the failure of rhythm and withdrawal , and the break or shedding of condom ; among unmarried women , the main reason was discrete use of contraceptives ( 55 . 4 % ) for the subjects thought the pregnancy would not happen
  已婚对象非意愿妊娠的主要原因是避孕失败( 73 . 1 ) ，其中以安全期失败、体外排精失败和避孕套破裂或脱落为多；未婚对象非意愿妊娠的主要原因为未用或未坚持用避孕措施( 55 . 4 ) ，而未用措施的主要原因是认为自己不会怀孕。