I need some advice, I have cyst in my ovaries could that cost to have a false negative pregnancy…

I need some advice, I have cyst in my ovaries could that cost to have a false negative pregnancy test or know anything about the hook effect? I look and feel pregnant even feel movement from time to time. I've been to doctors and the emergency room won't give me a ultrasound unless I get positive test, and I have irregular periods and i can't even figure out a date of when it could of happened. My husband and I don't know what else to do . Anyone else gone through this or know someone that has . Could really use any type of help.