two days late took test and negative..

Hey guys. 
Guess I'm just looking for feed back. I'm never late could nearly pin point the time I'm so regular. Now of course just as we are TTC, my period decides play with me. Took a pregnancy test came up negative.
I've the cramps for days which I've never had without my period
Feeling frustrated because my mind is giving me false hope 
Anyone else gets lots of cramps but no period and testing negative 
Thanks xx