HELP PLEASE! Could I be pregnant?

I've had unprotected sex from sept 24th - oct 8th. I know this because my husband has gotten deployed. My last period was Oct 11th - Oct 16th. I have not gotten my period. Which was actually scheduled to come Nov 8th - Nov 13th. Which I have not gotten yet. Could I be pregnant? I'm hesitant on taking one. Simply bc I don't feel like I am. I haven't had any symptoms. Just a week missed period.