cyst??

Jillian • Hard worker-Wife💍-Momma to 👶 🐶🐱🐱.
For the past few weeks I've had some strange symptoms and I'm scared. I've been very bloated with stomach pains and cramp. I've also been kind of dizzy and had horrible headaches. 
My period is now almost a week late and I've taken several pregancy tests, all negative. I'm hoping to get into the doctor on Monday but I've been googling my symptoms (I know, bad idea) and ovarian cysts and cancer keeps coming up. Has anyone else experienced anything similar?