In Cheiros Numerology 12 is a unlucky number but then in the Phythagorean system i have not seen a 12 but some adding im doing adds up to a 12 any help??

In Phythagorean system, the numbers are reduced to a single digit.( But master numbers 11, 22 33 are seen as a higher vibration of the single digit they are reduced to  and have more detailed meanings as well.) The twelve reduces to a 3 in Phythagorean.  3 is an outgoing, creative number (not unlucky at all)

Here's some info on 12
Astrology: 12th Planet (Sitchin's 12th Planet) ruler of Virgo
Perfectionist, discriminating. Experience, and accumulated strength and wisdom. May be a perfectionist.

There were 12 disciples poweful as a teacher and inspiring to others. Related to the number 7 which is another number of completeness, note that both of these numbers are made of 3 (representing a sphere in sacred geometry) and 4 (representing a square in sacred geometry), either multiplied or added together. Twelve is also the marriage of the number 10 and the number 2 signifiying physical and spiritual perfection.

Character traits: The vibration of the 12 is similar to the 3 vibration raised to a higher level and with a little more idealism/self-righteousness thrown in: Idealistic, detached, suspended between the spiritual and physical world. Highly sensitive and emotional. Very determined in completing tasks. Good at comforting others, Co-operative and good-natured, symphathetic and understanding, helpful and good at keeping a secret. Gets along well with others. Likes detail and a routine somewhat as long as others are around.
Negative tendencies: Perfectionist. Feelings of being an outcast, in limbo. A great need to find the Spiritual within the Physical to the point of martyrdom.