Miscarriage

So back in July I had a miscarriage. My period still hasn't been back to normal. I feel like I might have been pregnant again, but early stage due to all of the similarities that I had before I miscarried. I took two tests, but they said no. I had a 3 day period about two weeks ago, but had sex last night and today bled horribly! No pain, but this happened when I miscarried. Is any of this normal following a miscarriage or could I have been/be prego??