Yea, it's been bothering me a lot. I'm 15 years old and I first started my period when I was 11. My periods usually are irregular. My last period was December 26th '09 and even then it was 10 days late due to stress. Now it's March 22nd '10 and I'm just wondering if it could be still due to stress. My grandpa hasn't been very sick and things aren't looking good, plus school has been taking a huge toll on me. I do have a boyfriend but we don't have sex or anything of the sort. But luckily recently I haven't been feeling as stressed, and since yesterday I've been having mood swings, small cramps, and feeling very bloated. So I was just wondering if you guys think I should be worried or not. And if my period ends up not coming again, should I go to the doctor?