8 weeks pregnant. Passed small clear sac ?? TMI TMI

Sooo i went to the emergency room 2 days ago and they told me i have something called subchorionic hemorrhaging. But I’ve still been bleeding a lot filling up a pad and also passing big clots. Last night i passed this along with a huge clot. What is it? 👀👀 i popped it and it was just clear fluid inside . TMI sorry i tried to cover up the big clots

UPDATE :

I just left the emergency room and i did in fact have a miscarriage. That was my gestational sac i passed 😔😔