Would really love to help

Sophie
So I'm currently on my second month TTC, all month I've had a feeling that I'm pregnant. So AF is due on Saturday 6/6 and today (12dpo) I took a FRER with FMU and it was a very clear negative. 
I've not had any of my usual AF cramps yet so I'm wondering if I am out since there wasn't even a hint of a line?? 
Or have any of you lovely ladies had a negative 2 days before your period and then turned out to be pregnant? 
I would really love some responses. Thanks!