Bleeding 😳 should I worry?

Li
Hey everyone,
The past week has been a roller coaster ride for my husband and I. Last week I started having a dark brown discharge, my doctor sent me to the ER and they found that I wasn't 8 weeks but only 6 weeks but everything was still in tacked and looking good. Now the pat few days I have had that brown discharge (it looks like chocolate) every time I go to the bathroom accompanied by slight cramps. I don't want to worry bc negative emotions can really effect everything but in my bones I feel like I should be preparing for the worst. 
Has this happened to any of you? What was your outcome? Should I worry?
Let me knowÂ