Depo WithDrawl

I got in Depo last year on October 13 and I was bleeding on November 28 or November 30 was when it started until January 26 and probably so on but I had missed my shot only had one shot of Depo I didn’t like it , it wasn’t for me my body was change weird mood swings I was so emotional and stressed and the bleeding haven’t stopped I was supposed to get my next shot on December 4th but I didn’t because I was stopping it my body haven’t been right and on January 26 I went the the bathroom and realized it was no blood on my pad when I wipe it was no blood on the tissue so I said to my self is the bleeding done or am I pregnancy I been getting nauseous a lot and today I was feeling nauseous when I walked into this store and I smell food and after that I went outside my mouth was watering and I knew I had to throw up so I threw up in the trash can I didn’t throw up anything really I barely ate sometime I won’t have a appetite or acne bumps on my forehead I don’t know if I just still withdrawl or it’s early pregnancy signs I need help

I’m confused