Hi, sorry your going through this, it's a scary time.
I too have seen both sides of this,
My first pregnancy I had episodes of bleeding the whole way through, and had a baby boy,
Last October i was about 4-5 weeks pregnant and had spotting for 5 days, very light, and on the day of my scan at EPU it started coming out heavy with clots, and unfortunately I had miscarried.
I'm now pregnant again about 5 weeks and have had a couple of spotting episodes already, luckily they seemed to have slowed down, so just praying no more now 🙏🏻
Unfortunately like you already know, there's nothing you can do, just watch and wait, deffo try and get seen by EPU but they only will scan you at 6 weeks I think.
I hope everything works out for you 