I am always tired and feel sick and feverish i think i might be pregnant i had unprotected sex 4 days before my period is it possible to b pregnant?

Unlikely pregnancy: If you had unprotected sex 4 days before your period was due, then got a normal period, it is highly unlikely that you are pregnant. If you have any question, i would wait at least 2 weeks after intercourse before doing a home pregnancy test and then repeating 2 weeks after that if the first is negative. However, the likelihood is low that you are pregnant if you got your period.