When will AF show?

Ash • TTC 8 years - 6 clomid IUI’s - 👼🏻 x 2 - IVF July 2019 w ICSI & PGS - ❄️❄️ FET #1 Oct 2019 BFN - ERA Feb 2020 - FET #2 Sep 2020 BFP!

I miscarried @ 9 weeks on 11/6.

I had HCG checked yesterday and it was 5.2.

How long after your MC did you get AF? Will my hcg need to be at 0 before it will start?