Feeling Nervous

I am about 4-5 days out from AF potentially showing her face. The closer I get the more nervous I am. Late last week when I had horrific cramping in my lower belly and subsequently started belching  constantly for no reason, getting up to pee at night, feeling slightly nauseous throughout the day, having sore nipples, and experiencing fatigue, I truly thought I was pregnant. Now I have taken a couple HPTs which is a bit too soon I know and of course both were negative. My mind is making me think perhaps I am not pregnant after all and it was a cyst that caused the pain or maybe I have a urine infection which is causing me to pee a lot at night. I wish I could save me from myself. :-(