There is a very small possibility that you will become pregnant. The possibility of getting pregnant increases when women menstruate with short cycles (less then 20 days), but as I understand it, your cycles are longer than normal. You can take a pregnancy test to be fully informed about your current status. Irregular cycles are often the result of a hormonal disturbance in the axis hypothalamus, pituitary gland, and/or the ovaries. It is very important that you ovulate during menstrual cycles because without ovulation pregnancy is impossible. Cycles without ovulation are usually irregular. You may need help from a gynecologist to examine the function of your reproductive organs and test your hormone levels to confirm that you are ovulating.