Miscarriage?

Sheridan

For 5 days in a row while expecting period I received positives from First Response, Clearblue said pregnant 1-2 and also a yes+ with first response digital. However, yesterday I started bleeding much like a period and bright red, tiny bits of tissue like coming out. I am also bleeding today and would say it is Regular-Heavy. It has been accompanied with cramps. Could this be a miscarriage?