Hi. I am currently 14 years old, and I am a girl. I started my menstrual cycle when I was 12, and I had it normal for a while, and then all of a sudden it started to skip every four months. It has done this twice now. My last cycle was in late July, and the time before that was either in March or April, I'm sorry but I cannot remember. I have never had sex in my life, so there is no way that I'm pregnant. What is wrong with me?