Feeling overwhelmed

My AF is due on the 5/6th April. I took a test yesterday just to see even though I knew it was pointless and probably inaccurate and it was a BFN. However, my boobs are seriously sore and I am so tired, beyond tired, that I feel almost hysterical and I just can't shake it. No matter how many early nights or lie ins. I've had pinchy cramps and loads of CM, have been starving hungry and today was seriously emotional. Please tell me that there's still a chance, the idea that I'm feeling all this for nothing is just unthinkable. Seriously new at this so apologies for the extended rant.