BFN at 17dpo?

Hannah

I'm 25 years old and been TTC for a year now after an early miscarriage around this time last year. According to a clear Blue advanced OPK I had peak fertility smiley face on 12th July indicating I would be ovulating on the 13th. I also experienced EWCM so I knew it was accurate.

Anyway, Its now 30th July which makes me 17dpo (3 days late). Took a clear blue digital with FMU and it came up as not pregnant? I have a really soft, closed cervix, back ache if I've been on my feet a little too long and slight cramping, and a breakout that's a little bit worse than usual (but that could be due to anything really).

Just looking for a bit of advice really. Any light that can be shed would be really appreciated. Thanks xx