When to quit progesterone after bfn?

Natalie • July 21 💚 Feb ’20 💙 March ‘18 💙 Dec ‘15 💙🧩 4 miscarriages 🌈
At what point do you stop taking progesterone in your cycle?  I'm 11 DPO with bfn, and although unlikely, implantation is still possible.  On the other hand, if I'm not pregnant, I'd like to stop the progesterone and get this AF done ASAP.   14 - 16 DPO seems to make sense, but I'd like to hear your opinions/doctors suggestions.  Thanks!