how to avoid existing date below in sql?

Question

   I'n my sql 2012 im generating a series of current month date like below in grid

 

 this is the query im using to generate a date

; WITH dates(Date) AS

(

SELECT DATEADD(MONTH, DATEDIFF(MONTH, 0, GETDATE()), 0) as Date

UNION ALL

SELECT DATEADD(d,1,[Date])

FROM dates

WHERE DATE < DATEADD(MONTH, DATEDIFF(MONTH, -1, GETDATE()-1), -1)

)

Select * from ( select convert(varchar(max),DATE,105) as [AttDate] from master_table) as tt

 

  date 

2017-03-01

2017-03-02

2017-03-03

2017-03-04

2017-03-05

 upto

 

2017-03-30

im inserting a date in one  sample table like below 

 date

 2017-03-01

 2017-03-03

 

 

once i insert a date in sample table i dont want to generate that date in grid how can i achieve that task

my fina result is 

2017-03-02

2017-03-04

2017-03-05

upto

2017-03-30