What's going on :( hpt and bbt pic inc

Stacey
Yesterday cd 28 af was due I got some light brown spotting it was the same thing morning but now a little heavier and red in colour.
 Why haven't my temps drops to suggest af was coming? 
This is the hpt I done before the heavier bleeding started. 
​Do you think the bbt could be wrong and this is cd1 of 1 year ttc :( very confused
​This was my first month doing bbt. 
 
Today's temp was 36.54.