I missed my perios compleatly last month. But I didn't think too much about it because I have been doing lots more excersise for a bout a month now 9since I got myself a mountain bike) and figured that had something to do with it. Now, sometimes I'm not exactly on time, but I have compleatly missed it althoughther it seems! I mentioned the other day to a friend that my BP must be low because I have been dizzy lately sometimes and thats the first thing that popped out of her mouth, Are you Pregnant? Now that has me wondering.