I am on the advocare 24 day challenge and have spotting and bleeding 10 days before my period should start. is this making my birth control inactive?

   Breakthrough bleeding (bleeding at the wrong time)  is very common on birth control.: It happens in about 1/3 of users. Its no big deal and usually self corrects over time.  if you are not satisfied or it continues to happen  then consider using a different birth control method. It is a common side effect and does not mean something is wrong or that the pill is not working.