Maximum, 6 sittings.
Maximum 4 attempts at one subject.
For example, sitting you subjects first time will be 5-5-4, each month that is 3 months/3 sittings, you then only have 3 sittings left for retakes (if necessary).
or
Being brave you sit all 14 in one month, you then have 5 sittings left for retakes, if necessary.
Good Luck.
FB