Miscarriage

Valarie
I did have irregular periods such as didn't get one for 2 or 3 months and I took a bath one day in which I like showers more and I sat in the water 3 minutes and a blood clog came out me it was the size of a coin dollar/ little bigger than a quarter I got out the tub and it sat on the mat. I really wonder if that was a miscarriage because later on that night when I went to the bathroom I was spotting then had a full fledge period for 6 days I hate that I never took a pregnancy test. Anybody ever had a miscarriage if so what it look like? I googled images of a miscarriage they showed a blood clog and said it depends on how far along in the pregnancy. Anybody?