Uneven menstrual cycle?
Answers: the only mode to "fix" that would be birth control pills. periods are controlled by hormones, that is what birth control pill are, and can label your periods more regular. For many however, they do enjoy some unpleasant side effects. .
Birth control pills can make it very regular. But surrounded by general 28-34 days flexibility is not a problem.
Read more in http://www.menstrual-cycle.info/14-Pills... and surrounded by http://www.menstrual-cycle.info/28-Cause...
Check also your weight in http://www.menstrual-cycle.info/10-Obesi....
Birth control will.
I have them when I was 11, and at age 18 I got regulated singular because I got on the pill.