21:51 here .. sorry for not seeing this sooner but yes, no birth control pills.

pp then I assume your FET didn't include birth control pills? you started estrogen therapy on AF from failed fresh cycle?

Not quite the same but my clinic actually allowed me do a fresh cycle followed immediately by a FET. I got my negative from the fresh cycle on the 27th of the month and then got my positive from the FET by the end of the following month - it may have even been the same date. Best of luck to you.

Yes, my clinic doesnt use BCPs for a FET- just start the estrace meds on day 2 of AF, so back to back would be day 2 of AF of BFN start the estrogen

I am doing back to back FETs - but I start with AF from BFN FET cycle, then am on BCPs for 3 weeks, get a period and then start meds. That's as close as my clinic will let me do them. Sounds like you're talking about no BCPs in between - sorry, no experience there.

Am planning to do another FET starting with the AF of this cycle if it's a BFN. my RE is ok with it. Has anyone done this? I see no reason not to (not like fresh IVF where ovaries need rest, etc, more like a natural hormonal cycle)