I Took The Wrong Week Of Birth Contr Pills. I

I took the wrong week of birth contr pills. I just started taking the pill three days ago and totally messed it up by taking week two. I took it to delay my period and today my period came. I don't know if it's a breakthrough bleed or my actual period. Do I go back to taking week one of pills? Or finish week two then go to week one then finish up week 3?