Restarted birth control 8 days before expected period. Off for. 3 weeks, No period. Cramping and light bleeding day before, is this delay normal?

End of pack. One would expect to have a period at the end of the pack of birth control pills. Since you started your pills so close to when your period was about to start you may experience irregular bleeding the first month. Typically we don’t start birth control so close to the menstrual cycle.