i'd say to wait and see if your period comes, and if its late, you should maybe try to take a pregnancy test. i've had unprotected sex quite a bit but haven't ended up pregnant, but everyones different. i heard you usually ovulate around 14 days after youre period or something? but you dont have to be ovulating to become pregnant i believe. sorry i dont know too much, but i hope that was helpful in some way :)