you could be pregnant if you were ovulating which is not likely since ovulation occurs in the middle of the cycle which is cca.14th day counting from the first day of your last period.If your period lasts 6 days,then 8 days after your period is over you are ovulating and so on...Ovulation can occur around 13th,14th or 15th day of your cycle.I don't think you are pregnant...Be carefull next time.Take care