Low HCG, Spotting, Cramping

So, I very unfortunately think that l'm having a chemical/miscarriage at 6 weeks pregnant (6 weeks from the first day of my last period). I started spotting today and cramping, the doctor sent me to get my hcg tested, and it's only 15. I have to go back in two days to get my hcg levels again, but it's not looking great.

I guess I'm wondering what other people have experienced after this if they've experienced something similar?

I just don't know what next steps are or could be. We're waiting to see if my bleeding increases or if my pain increases before I would have to go to an ER or anything. Thanks in advance for any insight.