Am i pregnant? An a week later I start my period??t?

Ok i had unprotected sex last week bout 8 days ago and today i started my period.. Am I pregnant? I knw once yu start yu cant be cus it cleans yu out but I wana make sure. Bur, I hope Im not I jst knw I learned my lesson Im only 23 dnt need a bby right now.. But, I bought condoms lol an birth control Im, prepared :D