Read! Need advise

Oky so on the 18th of June I had sex for the first time , (and its also my first month of being on birth control ) I was super paranoid and scared that I used a condom and he does the pull out method and I drank a morning after pill . Then on the 20 I had sex again , but this time we only used a comdom and it didn't broke or anything . On the 2of july I took a test and it said negative . Today I noticed small drops of blood and my period is supposed to start in to days ... do you guys think that its just my period or what , so paranoid