Pregnancy symptoms

Charley Knows • 24 and living without a thyroid 💪🏼
Any advice or help would be greatly recieved. I posted this before but got no comments so trying again! Okay so I got on the depo 4 months ago and have only had spotting, I have recently been getting the same pregnancy symptoms I have had in the past. Can't eat a full meal, feeling sick and cramps. I also have pains all around my belly. My boobs aren't sore at the moment but I'm just really concerned. My SO and I don't use condoms but didn't have sex leading up to getting my second lot of injections. Is this the depo shot or what I'm really confused and would like some help! Thank you x