Feeling Low 😔

So today I'm 9dpo,
I've had some twinges the last couple of days so thought this would be my month, tested this morning and got a BFN.
Today I've been having some period pain, mostly low backache that I get when I'm due. 
I'm guessing af is on her way 😢😭😢😭😢😭😢😭😢