Brown Discharge for 4 days

Liv

I am 6 weeks , and I panicked on Thursday night. I had light pink spotting, and then it turned to brown. And it's been almost brown discharge since then (4 days) I did get a blood test in Friday because I was nervous, and I will be going Monday as well to make sure the levels go up. Just curious if anyone else has experienced this? My HcG was 21, 824