Help with If statements

I needs some help

This Access VBA.  I need to combine all these statements and make the last condition this: (if all statments are false then)
Else
  Range("P20") = Month(cboSecondary.Value) + 1 ' Standard Pool Month

''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''This is my code.

If Len(cboSecondary.Value) > 3 Then
    If (cboSecondary.Value) = "11/29/2006" Then ' Jan Pool Month
        Range("P20") = 1
    Else
       End If
End If
       
If Len(cboSecondary.Value) > 3 Then
    If (cboPrimary.Value) = "30Govt" Then
       If (cboSecondary.Value) = "1/2/2006" Then ' Jan Pool Month
            Range("P20") = 1
       Else
          End If
    End If
    End If
   
If Len(cboSecondary.Value) > 3 Then
    If (cboPrimary.Value) = "30FHLM" Then
       If (cboSecondary.Value) = "1/2/2006" Then ' Feb Pool Month
         Range("P20") = 2
       Else
       
       End If
 End If
 End If
   
If Len(cboSecondary.Value) > 3 Then
    If (cboSecondary.Value) = "10/31/2006" Then ' Dec Pool Month
        Range("P20") = Month(cboSecondary.Value) + 2
     Else
       
       End If
End If

If Len(cboSecondary.Value) > 3 Then
    If (cboSecondary.Value) = "8/31/2006" Then
        Range("P20") = Month(cboSecondary.Value) + 2 'Oct Pool Month
    Else
       
End If
    End If

If Len(cboSecondary.Value) > 3 Then
    If (cboSecondary.Value) = "11/1/2006" Then 'Nov Pool Month
        Range("P20") = Month(cboSecondary.Value)
    Else
       
       End If
End If

If Len(cboSecondary.Value) > 3 Then
    If Month(cboSecondary.Value) = 12 Then
        Range("P20") = 1
End If
    End If