How long ago was unprotected sex? Do you know when your next period is due or when your last one was?
Try to not worry until you know for sure love x
I'd take a test on the day your period is due if it hasn't already arrived. If its negative, wait another week and if period still hasn't arrived, take another test.
If you are pregnant, don't be afraid to tell someone. Your parents might be mad at first, but its because they care about you and want the best- few people will be mad once baby is here should you choose to have it. ( I know because I've been through a similar scenario).
I wish you all the best lovely x