Period late but negative tests every morning

[Rukki]

Hi all - I am 25 years old and came off the pill this September after 2 years of taking it. My first bleed started on 10th Sept, then my first real period was 8th Oct and my last period was 9th November. My app now says I am a week late but my tests are all negative. Im experiencing fatigue and headaches - my breasts are feeling full but not sore. I don’t track my ovulation - any advice? I’ve put in 2 pics of my recent tests where I thought I could see something.

I am now on day 41 on a usually 33 day cycle. Yesterday morning I had very pale brown discharge which remained minimal. I was very active yesterday so would have expected AF to arrive heavily. I have very heavy cycles from day 1. I am still having the pale brown discharge today with some pale red. Will keep monitoring to establish whether it's AF or spotting...