5w 1d bleeding

Tali • 💍Engaged. 👼🏼 12.12.15 👼🏼 2.21.17 🌈👶🏼5.2.18 👶🏼2.20.20 👶🏼Due Aug'22
I've been bleeding since 1am on 2/16. I had turned 5weeks that day. The ER dr said they couldnt see anything on the ultrasound but it may be too early to see anyway. they said my hcg was at 863. on 2/14 they were 582. I'm still bleeding. Sometimes a little red, sometimes it's pink. sometimes it looks like its going away but then not. It doesnt fill a pad or even leaks onto a pad. But when i pee and wipe, its there. Im afraid i might be miscarrying. i took an hpt and the line looks the same as my last test, maybe a little darker. I dont even know what happens if you do miscarry. would the test line start fading right away? would i know? I feel so down.