Normal?i

I took a plan b nesr at the end of July, I had a small period afterwards and now I am late by a week for my period according to the app, Ik plan B fucks up my cycle but lately I’ve been getting bad cramps in my stomach and pains in my vagina as if I were to get my period , they are the same pains I feel right before I get my period and I get very easily bloated now; I’m not nauseous I don’t get headaches and my boobs don’t get sore which are signs of pregnancy however is this normal?