Pain near cervix after mc

I miscarried naturally on July 9th (about two weeks ago). Just tonight, I started having pain near my cervix. Nothing I did seemed to trigger it. It comes and goes and the pain is light. Normally, I would just take an advil and continue on but because of the miscarriage, it is making me a little nervous. I reached inside my vagina and felt nothing abnormal. My cervix is closed. Anybody know what it is or had it happen to them?