Pregnant or what?

Patient: I’m 17 years old and i was 2 weeks late. i finally started bleeding today. I’m not using birth control and i have been having unprotected sex. 3 tests have been negative but i think i may be pregnant. is there any way what so ever to find out if im pregnant other than tests? because they health department wont do a test until im 5 weeks late. i calculated that i would be around 6 weeks pregnant if i am.