Home from my doctors appt 😩 They made me do another urine test which was negative and then drew…

Home from my doctors appt 😩 They made me do another urine test which was negative and then drew blood but I get results back tomorrow. My doctor counted back the days to my last period she said If I was I'd be 6 weeks by now and it should show up so she doesn't know what else it could be I haven't ever been on birth control and I've never been than 3 days later and here I am a whole month late she said more than likely if it didn't show up in urine it won't show up in blood because they're both HCG test so idk what to do! 😕 She said if the test is negative tomorrow she doesn't know what it could be I'm heart broken any ideas ladies?