Cramping

So I had a bad reaction to my birth control patch. Skin irritation and period like symptoms. Like cramping, nausea, and headaches. The spotting happened after I saw the doctor. I saw her Monday she told me to take my old bc pills until I could get an IUD. My pills were low dose and I didn’t have any issues with them but I was bad at remembering them. So I’ve been on the pill since and I started bleeding Tuesday. I’m still cramping but not as bad. But I have no idea what to do. I really want to feel normal again but without getting pregnant. How long do I wait before I call the doctor and tell her that I still don’t feel good?