am I pregnant….or pmsing help lol

Ok so here’s my background so I had been on the depo shot provera when I was 17 years old up to this year . I’m 21 lol. I’m happily married and I’ve been a year married. Anyways, I got my last shot in July 8th and the shot lasts 3 months. So after that injection I stopped getting it. Also, when I was on the shot I rarely got my period, I might’ve gotten my period 2x while I was on the shot. I got my first period in September it lasted 7 days , it was from the 1st of September to the 7th. I got my period in October for 3 days 9th-11th, and in November I got my period 13th-17th. I’m using several period apps to keep track of my period and symptoms and also whenever I have sex. I’m not using any protection whatsoever. I wonder if I’m pregnant. I know it’s so soon for me to get pregnant bc I was on the shot for a long time but I also know everyone is different. So what I’ve noticed is that my boobs are growing and my nipples are bigger than usual and there’s like a darker circle around my nipple and idk if it’s bc I’ve been gaining weight. Another weird thing is im extra hungry, idk if im not eating enough bc I’ve been eating 2x a day or if it’s bc I’m a fatass. I ate 7 wings the other night and I felt like I was STARVING as if I hadn’t eaten anything and I had just eaten those 7 wings…. An hour ago I started spotting and when I get my period I usually have a heavy flow and I feel like crap. I feel normal like as if im not on my period. I took tests today and they’re negative. Am I taking them too early???!?? Is the spotting my period???!? It’s dark brown and it’s not a lot of spotting. I can’t think of any other symptoms, oh I’ve been EXTRA emotional. I’ve been crying all week but it’s like dumb shit. I never really cry so it’s odd. like been super sensitive.