Yes u could be.You really should go and do a blood test,it will make u feel more...relaxed.Anyways try to relax somehow,your mind is...powerful,you may find urself bloated because of the stress,I dunno,I'm just saying cause i happended to me,and I;m telling....Our minds are a powerful thing =/ if u need someone to talk to ,u can mail me =)
you should be getting a postive pregnancy test by now. if your having unprotected sex.....then yes you can be pregnant. when you were at the doctors taking a urine test, you should have asked for a blood test because now your going to have to go back to the doctors and get a blood test...if your not pregnant there can be a number of things causing you not to get your period