If AF is due on Wed the 29th (?), based on you having a 14 days LP I would think that you were 10DPO today.

The earliest I have ever got a BFP is 10DPO so I would think it is possible for you to get a very faint positive result today, however it is still early and some people do not get a positive result even if hey are pregnant until AF is due or even after.

So to answer your question in short, I would say you are 4 days before your missed period. It is possible to get a faint positive now, but make sure you wait until tomorrow and use your first morning urine, and if it is negative do not stress yourself because it is still early.

Good Luck .