No I don't think you are.
You only get pregnant by having ----- with a man. I always ask this question to myself actually you are not getting pregnant but if there is any thing going wrong cause of your period I may be wrong but go to a doctor
I think you could very well be pregnant, but the only sure way to know is by going to the doctor, but don't get your hopes up because it could just be a false alarm like I'm sure plenty of us have had before, but good luck!