AF due today 21/2

Gemma • First time ttc, 31 yrs old, wishing for baby dust!!
AF is due today (well I think so). Pre-pill and on pill I had a 28 day cycle. Came off pill and had my first real AF 31 days after but now I'm thinking hopefully will be back to 28days. We will see
So I have had some drown discharge when I wipe 5 days ago which happened on and off for 3 days, then nothing.
Tested today (I think due day) and BFN!!!! Had loads of early preg symptoms such as sore boobs, a constant mild ache in tummy, the potential implantation bleeding.
Do u all think it's still to early to test?? Or am I just driving myself crazy??