How long after hcg goes down did you have a “period”?

Lindsay

Got my bfp on Tuesday the 21st. The same day I had light brown spotting. I wasn’t super concerned because I had that with my daughter and I had a healthy successful pregnancy. I called my ob to let them know about my positive and make an appointment for a few weeks out. I mentioned the spotting and they had me in for a blood draw. I got a call on Wednesday that my hcg was 10. My ob said I’m most likely miscarrying but he wants to have me in next week for another draw. I’ve been struggling all week in this state of limbo and I broke down and tested tonight. A very obvious negative. I would have been 4 weeks 2 days today, so I know this is considered a chemical pregnancy. How long until I bleed? I’m dreading it and I just want it to be over so I can have some closure. My ob still wants me to come in so they can confirm I’m at 0. What will happen if I don’t bleed naturally? Will they induce bleeding somehow? I’ve been crying on and off for days it’s all I can think about.