We had sex 5 days ago and I am worried because my menstruation is 1 week early.. I want to know if I am pregnant? My normal period give me immense cramps/pain in my boobs and headache but this time I don't experience that. Please answer my question.. thanks..

How do you think anyone would be able to tell you if you are pregnant online? If you had sex, then yes, there is a possibility that you are pregnant. I would say that the possibility is greatly reduced if you are having a period, but you can't be sure unless you take a pregnancy test. Wait a week, and test with first morning urine.