When I MCd at about seven weeks, it was like a very hard, heavy period with lots of big clots. I don't remember how long it lasted, but we had just been in to the midwife the week before for an early sonogram and could see the sac but no heartbeat yet. The u/s after I MCd showed that everything had passed and was clear so I didn't need a D&C. Hopefully it is just spotting and nothing to worry about. *Hugs*
Baby #3 due September 2015!