I can't help much, because I am still waiting for mine a month later, but I do have some info that may be helpful.
https://www.pregnancyloss.info/waitingforaf.htm
Check out that link, see if it helps answer some questions. It sounds like you can't expect your new cycle to start until the bleeding from the miscarriage stops. When did your bleeding end? It also sounds like it is fairly common to take awhile for your period. I understand your confusion, even though I haven't waited as long as you have yet, I wonder when it will happen. It is hard the whole not knowing, isn't it?