Passing blighted ovum naturally

I’m wondering if anyone can share their experiences with blighted ovum? Little back story I went in at 6 weeks for hcg blood draw. The results was they were too low and didn’t double. I had an ultrasound at what I should be 7 weeks and 2 days. I do have a sac there but it’s empty and measured at 5 weeks and 2 days. I go back on September 6th for another ultrasound. I’ve been having a lot of brown spotting and very few times were they pink and red since I was about 5 weeks. I’m wondering if anyone was able to naturally pass the blighted ovum? Have you spotted for weeks til you pass them?