period? or miscarriage? is this the right group?

Andrea

I went to the doctor today for an emergency scan. I was 8 weeks pregnant, I took 4 electronic tests at home saying positive. I went because I started bleeding and they said they couldn't see a sac, they didn't do a vaginal ultrasound and they took a test and it said negative, so they did a blood test and won't hear back til tomorrow. is this a miscarriage or they just think I'm crazy and have a period that's been missing for a month.