Preggo?

Help please!!! I been on the shot and I was having periods. Now, I'm not having periods anymore and I been feeling nauseated, cramped, headache after headache and very tired. I also been real moody😩I don't know if I'm preggo or not and my boyfriend want me to wait a few days before I take a test. Do any of you think I'm preggo? I'm not trying but these side effects are really bothering me and I bled for 6 months while being on the shot. All of a sudden it stopped and I have been spotting