OK I had enough waiting I'm going to go get a test (already posted a Stat about this a week or more…

OK I had enough waiting I'm going to go get a test (already posted a Stat about this a week or more ago) it's been 19 or so days I believe sense I didn't go back to get my shot still no period or even a spotty light period like i had on the shot idk what's going on but I feel off and yuky achy like I'm getting my period but nothing felt like I had implantation cramping last week and now I been feel slightly nauseous but nothing I can't handle,I doubt I could get pregnant when I last did anything it was a few days before it was due which was like January 28th or so then I didn't get my shot Feb 2nd,I'm either paranoid and tricking myself into it from over thinking or my body is acting weird getting off birth control or I am...which wouldn't work out right now ...scared to even test ....(got off bc shot due to weight gain want the mini pill )