Bad FRIDAY THE 13th

I was 8 weeks yesterday I started experiencing some brown spotting Thursday then Friday around noon felt a gush come out my underwear were covered in reddish brown discharge I went to the ER THEY DID a vaginal ultrasound said fetus only measured 5 weeks 6 days but I should be 8 they said they couldn’t detect a heartbeat but at that size they wouldn’t. They said either I’m miscarrying or I’m earlier than I thought but I know I’m losing the baby because the bleeding is still there for 3 days now still not bright red still reddish brown but I’m cramping now so I know it’s not a good sign I’m torn I was very very happy for this baby