6 weeks. Brown spotting. Should I go to the hospital? TMI pics

I’ve had spotting a few times since I was about 4 weeks. This is quite a bit heavier than that was though. Please let me know your opinion.

I know spotting CAN be normal. I had some last week and when I went in the next day for the ultrasound there was a sac and yolk sac and no blood anywhere on the ultrasound. I’m praying it’s just old blood but with it being slightly heavier and more consistent, idk. It’s only ever been brown though. I’ve had 4 miscarriages and I’m just horrified at the prospect of having more. Any comments are welcome.