Need Advice For 2005 September Wedding

My FH and I are thinking about either getting married June 25 or September 17 of next year and I`m clueless about what colors to have if we get married in September. If we get married in June we were going to have Ivory, lavender, and pink but I`m not sure if those colors would go well with the month of September. So please help me decide! I don`t want gold to be one of my wedding colors. I already have the guestbook, unity candle, and ring bearer pillow in Ivory so Ivory has to be one of my colors. Any advice would be of great help!