I Currently Have The Nexplanon Implant In My Arm. I

I currently have the Nexplanon implant in my arm. I got it back in June/July of 2016. I had my period that month as usual, however after that I only had very light spotting up until recently when I started my period on December 7, 2016. Since then I have continually had a normal flow period with occasional painful cramps. I'm at the point where I'm not sure what to do and I cant see my normal doctor because I am from California but in Missouri for college. I am out of options.