baby dream- I see your test went to 2-3weeks! thats great progression!
Amco- I wouldn't count yourself out until AF shows. Do you track O day? Because from AF to O day are the days that would increase if your cycles are longer. Luteal phase (O to AF) those days are usually constant unless you take meds/vitamins that might lengthen it by a day or two. So if you track Ovulation (O) that you could kind of see where you are at in your cycles a bit better.
As for me, I am 11DPO... usually I get AF between 12-14DPO. Mine range because if I am good at taking my vit B then it lengthens to 14 days, but if I am bad about taking my vitamin it is more like 12 days. I am tempted to test tomorrow, however I feel like my cervix is dropped and opening. So I am guessing im out.