Spotting?

Britanny • Married to my high school sweetheart. Mom of 1. TTC #2 and having zero luck.
I'm new to this whole pregnancy thing. I've heard that spotting is completely normal but its freaking me out. I wasn't expecting it when it started, its not heavy and there's no unusual cramping but I'm not quite sure when is a good time to go to the emergency room. I've just had a little bit of spotting through out the day, has anyone else dealt with this? I am only 5-6 weeks in..