Miscarriage?

Jazmin

Went in for an ultrasound at 8 weeks 5 days and they couldn't see a fetal pole yet but there was a yolk sac. Now my levels went from 27000 to 21000. Is this a miscarriage? I am now 9 weeks 3 days.. I have a follow up ultrasound at the end of the week and continuing to get my levels tested all week.