getting nervous

okay so i’ve never posted in here and i’m not one to ever do stuff like this but i’m starting to get nervous and idk what to do. i got my last period May 3rd, and i had sex for the first time (twice) with a condom on both times on May 12th. i’m two days late and i’ve been having some cramping but nothing else. idk what to do. i only have a dad i can’t talk to him about this.