A.C.
Unfortunately, you certainly could be experiencing an early miscarriage--and there isn't anything to be done at this point. If your bleeding lasts longer than two weeks or gets exceptionally heavy (more than one tampon or pad per hour) you should see a care provider immediately. A complication of miscarriage can be "retained products of conception" but it sounds like you are passing everything as expected. If you develop any fever or your discharge becomes foul smelling, you should also seek medical attention.
A very early miscarriage usually won't require a D&C, but every doctor is different in their opinion and every situation varies. I've passed two miscarriages at home without any intervention. My midwife recommended a couple of weeks of pelvic rest following my miscarriages before resuming "relations"--basically wait until you get your period again in 4-6 weeks.
Good luck with your future pregnancy.