Did I miscarry?

Patient: Im on the implant, I have monthly periods which are sometimes a few days late. However, I didnt come on for 2 months, I questioned pregnancy but never did a test because I came on. I had painful cramps in my abdomin. Then yesterday I passed a small white thing, it wasnt runny as discharge, it was more solid and had a blood clot at the end. It was about half an inch long. Is this normal?