Date issues SQL first day of month crossover - sql-server

Question

Here is my issue week of year 27 shows 2 dates as the crossover for the month happens it generates another 1st day of month date,
i only want to show to first date in every instance that this happens
Datetime----------------|WeekofYear ------|FirstDayOfMonth
2015-06-29 00:00:00.000 |27 --------------|2015-06-01 00:00:00.000
2015-07-01 00:00:00.000 |27 --------------|2015-07-01 00:00:00.000
CREATE TABLE #weekonweek
(
[Datetime] datetime,
[WeekofYear] int,
[FirstDayOfMonth] datetime
)
INSERT INTO #weekonweek
SELECT
min(c.Datetime),
c.WeekOfYear
,c.FirstDayOfMonth
FROM Calendar c
WHERE YEAR = 2015
and WeekOfYear = 27
GROUP BY WeekOfYear ,c.FirstDayOfMonth
SELECT * FROM #weekonweek
CREATE TABLE #subtable
(
[Datetime] datetime,
[WeekofYear] int,
[FirstDayOfMonth] datetime,
)
INSERT INTO #subtable
SELECT
c.Datetime,
w.WeekOfYear,
min(w.FirstdayofMonth)
FROM Calendar c
LEFT JOIN #weekonweek w on c.WeekOfYear = w.WeekofYear
WHERE YEAR = 2015
and c.WeekOfYear = 27
and w.FirstDayOfMonth <w.FirstDayOfMonth
group by c.Datetime,
w.WeekOfYear
SELECT * FROM #subtable
DROP TABLE #subtable
DROP TABLE #weekonweek

Answer 1

So if you wanna to achieve this ouput:
Datetime----------------|WeekofYear------|FirstDayOfMonth
2015-06-29 00:00:00.000 |27--------------|2015-06-01 00:00:00.000
You simple need to use TOP 1 and add ORDER BY clause.
SELECT TOP 1 * -- like this
FROM #subtable
ORDER BY DateTime -- here you need to pass ORDER BY

Answer 2

SELECT DR.DivNo
,p.[ProductCode]
,p.ProductClass
,p.EmpNo
,[Description]
,[CGNo]
,[SCGNo]
,dr.Retail
,bd.[Buying Director]
INTO #Product
FROM [PRODUCT] p
LEFT JOIN [DIVRETAIL] DR ON p.ProductCode = DR.ProductCode
WHERE dr.ValidTo IS NULL
AND dr.DivNo NOT LIKE '8__'
GROUP BY DR.DivNo
,p.[ProductCode]
,p.ProductClass
,p.EmpNo
,bd.[Buying Director]
,[Description]
,[CGNo]
,[SCGNo]
,dr.Retail
SELECT TOP 1000 [Datetime]
,[FirstDayOfWeek]
,[FirstDayOfMonth]
,s.NoOfStores
,s.DivNo
INTO #stores
FROM [Calendar] c
LEFT JOIN Stores s ON c.FirstDayOfMonth = s.Validfrom
WHERE DATETIME = firstdayofweek