Misscarriage or just a regular blood clot??

Heather

Okay, so like a month and a half ago, I was on the nuvaring birth control. It kept making me have bad cramps and bleeding like crazy. So one day, I decided to take a hot bad. And of course, still bad bleeding and then this came out. I went to the doctor and they said they didn’t see where it was a sign of me being pregnant, but I want y’alls opinion. Is this a miscarriage or is this just a blood clot.