Am I pregnant ?

I’ haven’t missed my period yet, but I did have my period July 7th but it wasn’t like a normal period, then before that I had a period to but it also wasn’t like a normal period.. my stomach has been having these really bad cramps, my back has been hurting specially when I’m trying to lay down. I have to have 4pillows behind me to sleep, I’ve been having shortness of breathe lately, my boobs have these blue veins that have been more noticeable, my nipples are standing out further and are in so much pain, there’s these pinkish bumps around the nipples , they look like they gotten a little bigger, but there still a light brown.. not a dark brown like they would be in a pregnancy , I haven’t been having to pee a lot since last month.. my stomach is bloating, I can’t eat anything without it tasting nasty (even things I would like ) if something hits my throat I’ll feel like I need to throw up.. I been feeling like I’m gonna throw up but it never happens and my headaches have been really bad and mainly a everyday thing, I tested after me and my boyfriend had sex because I been paranoid since he told me he did cum in me.. but they came up neg but one test had a fated positive line then the others after that was a negative.