Assuming that (1) you were born between 1950 and 1985 and (2) the danish date format is (dd-mm-yy), here are the possible DOBs:

    10-01-51    30-01-51    17-03-51    14-05-51    26-05-51    27-05-51
    13-06-51    16-06-51    16-07-51    18-07-51    25-07-51    25-09-51
    15-10-51    21-10-51    24-10-51    21-11-51    13-12-51    17-12-51
    19-12-51    28-12-51    10-01-53    17-03-53    27-05-53    16-07-53
    25-07-53    21-11-53    17-12-53    24-02-57    29-06-57    25-10-57
    13-02-59    24-02-59    21-03-59    29-06-59    14-07-59    17-07-59
    22-08-59    15-09-59    25-10-59    26-10-59    10-11-59    24-12-59
    13-02-61    10-03-61    21-03-61    31-03-61    27-04-61    23-05-61
    14-07-61    17-07-61    27-07-61    22-08-61    23-08-61    26-08-61
    15-09-61    12-10-61    18-10-61    21-10-61    26-10-61    10-11-61
    17-11-61    24-12-61    25-12-61    10-03-63    31-03-63    27-04-63
    23-05-63    27-07-63    23-08-63    26-08-63    12-10-63    18-10-63
    21-10-63    17-11-63    25-12-63    13-03-67    19-03-67    11-05-67
    19-06-67    15-07-67    14-08-67    20-08-67    16-09-67    25-09-67
    24-10-67    17-11-67    26-11-67    29-11-67    27-02-69    13-03-69
    17-03-69    19-03-69    22-04-69    11-05-69    19-06-69    29-06-69
    15-07-69    28-07-69    14-08-69    20-08-69    16-09-69    25-09-69
    22-10-69    24-10-69    12-11-69    15-11-69    17-11-69    26-11-69
    29-11-69    11-12-69    23-12-69    27-02-71    17-03-71    22-04-71
    29-04-71    29-06-71    23-07-71    28-07-71    22-10-71    12-11-71
    15-11-71    22-11-71    11-12-71    23-12-71    29-04-73    23-07-73
    22-11-73    15-03-77    11-04-77    19-05-77    16-08-77    22-08-77
    17-10-77    25-11-77    27-12-77    18-01-79    15-03-79    11-04-79
    19-05-79    11-08-79    16-08-79    22-08-79    17-10-79    14-11-79
    25-11-79    10-12-79    27-12-79    18-01-81    20-03-81    16-04-81
    30-05-81    14-06-81    11-08-81    15-08-81    24-08-81    14-11-81
    30-11-81    10-12-81    20-03-83    16-04-83    30-05-83    14-06-83
    15-08-83    24-08-83    30-11-83