11 day luthel phase, BFP?

I am wondering if anyone with a shorter luthel phase had to wait longer to get their BFP?

I am currently 4 days late for my period and all the tests I have taken are BFN. my period is like clock work so it’s very unusual for it to be late.

I’ve seen online that it may take up to 6 days after a missed period to get a BFP with a short luthel phase. I’m just hoping to hear anyones stories or experiences with this