Brown discharge at 16w

Catie
I just wiped and had a bit of brown discharge in my tissue.  I'm freaking out a bit because this is the way my miscarriage started in July.  
I'm not having any cramps and monitoring the discharge.  I almost don't want to call my doctor because it makes it real when it could be nothing.  
I guess I'd just love to hear some positive outcomes after having brown discharge...