How long after testing negative did you bleed?

This is my fourth loss; with the others, bleeding started before hcg was zero (when I got betas) and before tests were negative. My beta 2 days ago was only an 8, and my tests have gone negative for over a day now. But no blood to be seen (I had a little over 24 hours of super light brown spotting on Tuesday-Wednesday but nothing since). My period is due today. The worst part is that, without the bleeding, there is a tiny piece of my heart that's holding on to hope, no matter how sternly I speak to it. The hope feels exciting in a way, but it lifts you up so high. And when you're forced to let go you fall so far. I hope I don't have to wait too long... what was your experience?