My period is late by 13 days (so far). I'm not stressed- I just started my second semseter of college but everything has been really exciting and enjoyable, I'm happier now then I was at home. And there is NO possible way for me to be pregnant. I've never had sex and the last time I did anything intimate with a guy it was about 3 months ago. I'm super worried. I have some period symptoms (cravinga and light cramping) but still haven't bled/spottee. I don't know whats up and I don't know if I should see a doctor.