Im confussed about this?

is it bad to only have 4 periods a year??Im confussed about this?
No.
Whatever is natural for your body is what is good.
Some people go on birth control pills to regulate their cycles, but some studies have shown that women in developed countries (with typically 28-day cycles) tend to have higher incidences of female cancers, etc than in poorer countries (where women are pregnant or nursing much of the time).
There is a birth control pill now that will allow you to have only 4 periods a year. So, that's probably OK if it was approved, right?
You should talk to your ObGyn.