I am a 25 yr old female, and I have always had my periods every month without fail. The last time I had sex (unprotected, with my fiance) was at the end of September 2009; I figured I wouldn't get pregnant because four days before I had my period. (without any problems) Come October my period was on time, but very light with cramping, and it only lasted four days (I'm a normal five, six day girl) took a HPT... Negative. November came, and my period was three days late without cramping, with a medium to light flow, HPT... negative, again. December my period was five days late I didn't take an HPT. But, in January and February of 2010 I did not have a period, but what I did have was brown spotting. I am not experiencing adominal pain, but what I feel is a movement that is similiar to gas. I went to my doctor, he ordered a lot of test for me to take. When he asked me do I think I'm pregnant?, I said no (I really don't). I'm not showing, and I don't have the symptoms, but I feel dizzy on occasion, and my lower back hurts (I fell in November). I took the test today, he said it might be PCOS, but, I don't have those symptoms either. Can anyone relate? %-)