What is this?

Rosa

I had taken my last dose of clomid 100mg. Af was 19 days late. When I was 17 days late I went to the drs and had a blood test done. 2 days later I got my period. Later that day I began having these really intense cramps. Like never before. My hands were shaking. I went to the bathroom and passed these clots. This has never happened to me before. After my lady parts were so sore I couldn’t even sit down properly. I thought I had a miscarriage. But 2days later dr called saying my blood test was negative. I don’t get it. Does this look like a miscarriage or what?