Period after chemical pregnancy

I am on my IVF journey. I did a stem cycle in April, had to cancel transfer as I had OHSS. Had a period after stim cycle in early May and commenced IVF frozen thaw embryo cycle in May. It took ages as my cycle was slow due to stim cycle in April. My FET was May 31 and resulted in chemical pregnancy confirmed 10/06/2021. (A week of positive home tests and then the HCG started to drop)

Due to the stim cycle and the slow cycle after the stim cycle I have absolutely no idea when my period was due or is due or what’s going on. I’m now day 3 of no progesterone, wondering when to expect my period as I am hoping to go straight into another FET.