Spotting?! Help!

So I'm 7w2d and I started having teeny spotting 2 days ago whenever I wipe after I peed. Today it seems to be more and I'm wearing a panty liner to monitor it. Color is brownish. No cramping.  I'm so scared. I had a miscarriage in December at about 6-7 weeks and I'm totally freaking out right now. When I miscarried I had cramps that felt like period cramps. Do you think I need to call my OBGYN? First appt isn't until 8/12/16 so I still have a week and a half til then. Or should I just monitor and if it gets worst call the dr? Anyone else have spotting and everything was ok? I need some reassurance that I'm not miscarrying again.