Help😩 What’s wrong with me

Lexi

So I recently got off my birth control for about a month now. I started my period March 9 due to stop taking the pill. My periods without being on birth control were usually at the end of the month. I still haven’t gotten my period but have been having cramps and such sensitive breasts for weeks, but I’m not pregnant. Not sure what to do or how long I should wait to go to the doctor. Any advice?