12.5 weeks & A clot...

Hello all.

I’m about 12.5 weeks, have had 4/5 ultrasounds because I’m considered pretty high risk. It went from being told I miscarried to a molar pregnancy, to a month later finding out Im actually pregnant. I had constant bleeding from the 4th of Oct - 4th of November. Heard and saw baby a few times. Yesterday I randomly felt something wet and it was a quarter sized clot. No bleeding. Very light pulling on the lower left side of my abdomen. Went to ER, and they couldn’t find a heartbeat with a doppler. Took blood work and sent me home. Has anyone had the same sort of experience? and have things turn out normal?