I’m currently 12 weeks and 5 days, and 3 days ago I had an episode of bleeding. I got up in the morning and had a rush…

I’m currently 12 weeks and 5 days, and 3 days ago I had an episode of bleeding. I got up in the morning and had a rush of clear liquid, then I went to the washroom and saw blood in the toilet. I panicked and immediately went to emergency where they did an ultrasound scan. Luckily the baby was alive and moving and had a clear heart beat. Relieved I went home and they prescribed me progesterone just in case, but there was no obvious cause. Later that night I stood up from the couch and felt another rush, but this time I was wearing a light day panty liner. It was red blood, no clots and the light day was fairly soaked. After that I have been spotting brown but was just told to take it easy because it is old blood. I do have a scan scheduled in 4 days but I’m so nervous about there being a problem still. I’m afraid to stand up, go to the washroom, etc. Does anyone have experience with something similar to this? I feel like I am losing my mind.