TMI passed something on 2nd af

I had my second mc back in July and am now on my 2nd period, today is the second day and I've had horrible awful cramps all day on and off and I've just been to the toilet and passed a massive red clot, it looked about the size of the bottom of a pint glass (couldn't think what else to compare it to sorry); is this normal? My periods have never been as painful as this before my 2 mc's so any advice would be appreciated x