J.K.
You might have some of the pregnancy hormones left and probably need to see your doctor ASAP. He/She will probably order a blood test to monitor the hormone levels in your blood. When I miscarried my doctor had me doing weekly blood tests until it was completely back to normal. He wanted me to wait for 2 complete cycles before I tried to get pregnant again. It is also very possible that you are pregnant, because you are very fertile after a miscarriage. I would call your doctor. Best of luck.