I have a q and it’s only a matter of opinion

I got my “day 21 blood draw” actually at 8 dpo not 7....and my level was only at 6.45 and I’m using progesterone therapy this whole time btw...well it’s now 12 dpo almost 13 and still no period...don’t you think I would have gotten my period by now with levels that low at 8dpo? I have a short luteal phase it’s usually about 10-11 days. Last month I had my day 21 blood draw it was 16,3!!! And still got my period by 12 dpo...I want opinions that’s all I know no one can say for sure...