Hi!! I started my periods when I was 12 years old and ever since they have been irregulars, I was so worry I told my mom and she took me to the doctor (don't be afraid at the doctor they just ask u questions that's all) and then they send me a pill that will turn my periods to normal, and for a while I took the pills and everything was ok. Now I'm 25, married for 5 years, I have a son and still have my irregulars periods. So don't think that something is wrong with u, it's normal to have irregulars periods, but anyway go to the doctor that way you'll feel better.