T-SQL how to get date range for 2 week pay period

Question

I have following seed input data:

1. Payperiod start: Dec 3rd
2. Payperiod end: Dec 16

Thats just example how company payroll goes.

Now,

Answer 1

Would the following not work?

DECLARE @StartDate DATETIME
SELECT @StartDate = '2016-05-01 00:00:00.000'
DECLARE @EndDate DATETIME
SELECT @EndDate = '2017-04-01 00:00:00.000'

DECLARE @Dates TABLE(StartDate DATETIME, EndDate DATETIME)

WHILE @StartDate <= @EndDate
BEGIN
INSERT INTO @Dates (StartDate, EndDate)
SELECT @StartDate - 13, @StartDate WHERE DATEPART(WEEK, @StartDate) % 2 = 1 AND DATEPART(WEEKDAY, @StartDate) = 7

SET @StartDate = @StartDate + 1 
END

-- Check the dates here... should be every 2 weeks
SELECT * FROM @Dates