Please help!!! So confused

Maria

Please any advice so I suppose to have my depo Provera shot on the 22nd and I didn’t get it, I was also ovulating on the 22nd my husband and I had sex on the 24 and 25 I been having some lower cramps on my abdomen and it’s also bloated, can I get pregnant that quick after stop taking the shot?? O and btw I’m taking prenatals vitamins for two weeks already. My body just feel weird and different.