AF issues after miscarriage

Hi everyone. I miscarried naturally on October 31 at 5w1d, we only found out we were pregnant a few days before. I had my first period on November 30, it was much lighter and shorter than normal. Prior to the pregnancy my cycles were regular every 30 days. AF is now overdue this month by 3 days which NEVER happens. I am not pregnant, I tested on day 30. I am having all my regular pms symptoms including cramping, backache, sore breasts, swollen hands a feet (my AF is pretty intense). Im wondering if anyone else's cycle changed after miscarriage and how long it took to go back to normal?