Today, April 6, for about a week now I have been having menstrual cramps like I normally used every month. But, I haven't gotten my period. My last period was March 2. Before that, I had not had my period for about three months. Also two weeks after my last period (March 19ish?) I also had terrible cramps but no period. My mom also had cramps that day, but she did actually get her period. My period has been EXTREMELY irregular lately. I generally dont know if I will get it that month or not. But twice now i've had these cramps but no period. I have tried looking up this issue and everyone says it is pregnancy, which in my case, is impossible. So there is no way that I am pregnant, but I am worried that something else might be wrong. Also, i'm 17 years old, if that helps.