All symptoms of pregnancy, keep getting false test.

Mia
For about three weeks now I have been having every single symptom of pregnancy. I've been pregnant once before and I always told myself that I would know exactly how I felt to be pregnant again and there's little times where I thought I was but I believe it was just me mall wanting to be because I knew in the back of my head I really wasn't but this time I feel like I know!!  It started with the tenderness of breast a.k.a. breast feeling like they're about to explode (which I do not get during my periods I only have ever had this symptom when I was pregnant)
baby cramps 
nauseous 
Extreme fatigue 
I have to pee every two hours almost I even wake up in the middle of the night to pee which is something I never do, when I am asleep I am asleep and nothing with me up. 
I am just so confused and I am so lost and ever since downloading this app it's giving me so much feedback and I've read about people getting false blood test before and seeing all the stories I just I don't know what to think!! 
Has anyone ever gone false blood test before?