Possible miscarriage? TRIGGER WARNING

So my period was late by 3 weeks, i took 5 pregnancy tests over the course of that time and they all were negative. I was cramping, had tender breasts, and even dry nipples and hormone emotions similar to PMS. My period finally started today, 7 weeks after my last period, and this came out. Much lighter and larger than my normal clots. Is this a miscarriage?