I had unprotected sex sometime last month. my period is now a week late, and i'm having a weird tingly sensation in my ovaries. could i be pregnant?

Yes.: I recommend taking a pregnancy test. If it is negative and your periods comes, you should go see a health care provider to discuss birth control and what you can do to prevent unwanted pregnancy. If you do not want to use birth control, than you should make sure you are prepared to become a mother and to care your a baby before you engage in unprotected sex.