HcG levels 6 weeks 2 days

Ma

Hello lovelies. I was put on bedrest today after I started having brown spotting and passing a.black big clot... in regards to my HCG levels they were: 15 DPO= 658, 17 DPO = 1445 and.today 6 weeks + 2 days (29 DPO) = 23.443.... Can anyone relate and still had a viable.pregnancy? I was expecting my levels to be higher around 50.000. I have an ultrasound scheduled for tomorrow