Hi!
If you were my patient, I would advise you to do a pregnancy test right away. The bleeding you are describing could be your period, and if it is time for your period, it probably IS your period.
Don't forget that you can purchase the "morning after pill" or emergency contraception at the drug store without a prescription (they took away the age restriction now)
ALSO Planned Parenthood can help you get onto some birth control BEFORE you get pregnant, or with options if it is already too late.
Take care of yourself or you will become a parent.
Good luck!
Dr B