Help!

Carla

Hi girls , looking for any insight. I usually have a very regular 30-32 day cycle. Last month was 38 days for some reason. This month I got a positive opk on CD25 so BD on that day and a day later. I’m now cycle day 36 so 11DPO but according to my normal cycles 4 days late. I did a test last night which came up with a very very faint line. But this morning with FMU I’m sure I did not see anything . So confused ! No signs of AF 😬