Yet Another Scare in this Sea of Scares

Advice? Soooo, I'm fairly sure something is up. I'm late on my period, my boobs have been sore for the past two weeks, my nipples stay hard for literally no reason too, I've got heartburn for the first time in YEARS, and my back's been hurting. That is just the stuff dealing with my body... I eat a helluva lot more than usual, as does my partner, I take a shit EVERY morning, I need a zebra cake at least once a day or I'm killing someone, and my sleeping schedule is weird, like one night I slept for a solid twelve hours for no reason and last night I went to sleep after one and randomly woke up at four am completely alert and ready to go do things before I made myself go back to sleep, and my emotions are all over the place. But, idk if I'm pregnant bc here's the thing. I'm only two days late. When I was one day late, I took a test and it came back negative. Also, every month before my period I think I'm preggers but it turns out I'm not. Idk, it just feels different this time. Advice?

EDIT: So, I'm not exactly trying to get pregnant. Like, we don't use protection of any sort besides the pull-out method. We are VERY aware that doesn't work very well but we kinda think that if I do end up pregnant, then it was meant to happen. That fate kinda bullshit, ya know? And, I'm not necessarily scared or fearing that I'm pregnant, just wanting advice from some ladies who can ease my mind one way or another on the subject.