Light brown discharge

Dana ☀️ • 32. Married 7.12.13 • Mommy to Elliott 👧🏼 3.5.16. Due with baby girl #2 12.12.18
Help! I am 14 weeks along and today had a very little amount of light brown mucusy discharge when I wiped 2 times after urinating.  I'm trying not to freak out or think too much I to it.  But I have miscarried 3 times in the past all very early along but can't help but be scared.  Has this happened to anyone else?  Should I be worried and call my OB or should I just relax?