DataSource Controls :: How To Prevent Inserting NULL Records Using SP

I have this "SP" that will insert one record to Table 1 and multiple records in Table 2 ...

I just need a way to prevent null values to be inserted in Table 2 ? here is how it looks in my table 2

ID Col1 col2 Col3
3 AB CDE EFGs
4 NULL NULL NULL
4 GDF SSS DFGD

i don't want to insert the second record ... how do i do that using existing "SP" ?

here it is my SP :

CREATE PROCEDURE dbo.Insertvalues
(
@newParentName NVARCHAR(100),
@NewJobTitle NVARCHAR(100) ,
@NewDepartment NVARCHAR (100) ,
@NewCompanyName NVARCHAR (100) ,
@NewURLAddress NVARCHAR (100) ,
@NewOfficePhone char(15),
@NewFax char(15),
@NewMobilePhone char(10),
@NewEmailAddress nvarchar(50),
@NewChiledGroup NVARCHAR(100) ,
@Newchiled_jobTitle nvarchar(100),
@Newchiled_department nvarchar(100),
@Newchiled_phone char(15),
@Newchiled_mobile char(10),
@Newchiled_email nvarchar(50),
@NewChiledGroup1 NVARCHAR(100) ,
@Newchiled_jobTitle1 nvarchar(100),
@Newchiled_department1 nvarchar(100),
@Newchiled_phone1 char(15),
@Newchiled_mobile1 char(10),
@Newchiled_email1 nvarchar(50)
)
AS
-- add parents group
INSERT INTO parents_group (Name,JobTitle,Department,CompanyName,URLAddress,OfficePhone,Fax,MobilePhone,EmailAddress)
VALUES (@newParentName,@NewJobTitle,@NewDepartment,@NewCompanyName,@NewURLAddress,@NewOfficePhone,@NewFax,@NewMobilePhone,@NewEmailAddress)
--obtain inserted id
DECLARE @NewParentId INT
SET @NewParentId = scope_identity()
-- insert into childe table
INSERT INTO childe_group
(groupId , chiled_name,chiled_jobTitle,chiled_department,chiled_phone,chiled_mobile,chiled_email)
(SELECT @NewParentId,@NewChiledGroup,@Newchiled_jobTitle,@Newchiled_department,@Newchiled_phone,@Newchiled_mobile,@Newchiled_email)
UNION
(SELECT @NewParentId,@NewChiledGroup1,@Newchiled_jobTitle1,@Newchiled_department1,@Newchiled_phone1,@Newchiled_mobile1,@Newchiled_email1)
GO