Worried

I went to the restroom tonight and noticed a tiny glob of discharge in my underwear.. when I looked closer it looked a little brownish.. I wouldnt call it "brown discharge" because when I wiped it was all normal color but it was a darker "off white" discharge on my underwear.. maybe about the size of a bb pellet. I'm not really having any cramping besides an occasional twinge.. could this be a sign of mc? Im 5.1 weeks. Im terrified of miscarrying and I'm constantly checking for any bleeding. Nothing red. I'm so ready for this first trimester to end.